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HISTORICAL RESEARCH REPORTResearch Report TM/70/06

1970

Environmental conditions at Morrison Busty Colliery, March 1966 to August 1968 (Gravimetric dust concentrations) Edwards J, Annis R

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Environmental conditions at Morrison Busty Colliery, March 1966 to August 1968 (Gravimetric dust

concentrations)

Edwards J, Annis R This document is a facsimile of an original copy of the report, which has been scanned as an image, with searchable text. Because the quality of this scanned image is determined by the clarity of the original text pages, there may be variations in the overall appearance of pages within the report. The scanning of this and the other historical reports in the Research Reports series was funded by a grant from the Wellcome Trust. The IOM’s research reports are freely available for download as PDF files from our web site: http://www.iom-world.org/research/libraryentry.php

HISTORICAL RESEARCH REPORTResearch Report TM/70/06

1970

ii Research Report TM/70/06

NOT FOR PUBLICATION Report No. TM/70/3

I N S T I T U T E OF O C C U P A T I O N A L M E D I C I N E

Environmental Conditions at Morrison Busty Colliery

March 1DSG to August 1968

(Gravimetric Duct Concentrations)

by

J. Edwards and R. Annis

Environmental Branch,Institute of Occupational Medicine,Roxburgh Place,Edinburgh, EH3 9SU(Tel. 031-G37 5131) OCTOBER 1070

Report No. TM/70/6


March 1936 - August 1968

(Gravimetric Duct Concentrations)

by

J, Edv/ards and R. Annis

C O N T E N T S

S U M M A R Y

1. INTRODUCTION

2. INVESTIGATORS

3. METHOD OF WORKING

4. SAMPLING AND EVALUATION '

4.1 S, T. P. Samples: 18th Environmental Survey

4. 2 The Gravimetric Sampling Trial

4. 3 Compositional Analyses

5. RESULTS AND DISCUSSION

5. 1 Respirable Dust Concentrations

5. 2 Composition of Samples

REFERENCES

TABLES 2 -4

Report No. TM/70/6

I N S T I T U T E OF O C C U P A T I O N A L M E D I C I N E


March 1966 - August 196S

(Gravimentric Dust Concentrations)

by

J. Edv/ards and R. Annis

S U M M A R Y

gThe report tabulates the dust concentrations in rng/m for the period

March 196G to August 1968 covering the 18th Environmental Survey and theGravimetric Sampling Trial at Morrison Eusty Colliery. The method of

o oconverting concentrations previous!}' quoted in particles/cm to mg/m°

is described.

The concentrations of the total respirable fraction of the airborne dust,

and of various mineral constituents, are given for each occupational group.Where estimates have been required to fill gaps in the data, sources arestated.

Morrison Busty Colliery had a coalface (all shifts) mean dust concentration

of 4. 2 rng/m ° containing 31 per cent ash. The mean quartz concentration3was 0. 2 rng/ni .

EEnvironmental Conditions at Morrison Busty Colliery

. March 1836 - August 1968

(Gravimetric Dust Concentrations)

by

J. Ed ward c and R. Annis

1. INTRODUCTION

Environmental (dust) measurements in the first phase of the Pneumoconiosis

Field Research (up to the third medical survey) were made by thermalo

precipitator (S. T.P.) and reported in terms of particles/cm . These results

were subsequently converted to estimated mass concentrations and used in the

Interim Standards Study to derive new gravimetric dust standards (Jacobsen,

Rae & Walton, 1039). For the second phase of the Research, it was decidedto change, as soon as possible, to gravimetric sampling (based, on the I/i.R. E,

Gravimetric Dust Sampler, Type USA) and. to report the results directly in •fi

gravimetric terms, mg/mu.

The measurements made at Morrison Busty Colliery in the 1st phase of theResearch have been summarised by Edv/ards & Annis (1933b). At thiscolliery the third medical survey took place in March, 1G6G towards the endof the series, but dust sampling by thermal precipitator continued for a period

thereafter (iSth Environmental Survey, June 1263 - March 19S7) and was

reported in the original manner (Edv/ards & Annis,' IGGoa). There was also

a period when both sampling methods were employed side -by- side (GravimetricSampling Trial, April 19G7 to April 1863) in order to establish mass-number

indices (1/1,11,1.) for the conversion of the earlier results to mass units, asreported by Edwards & Haclden (13G8). Gravimetric sampling started on a

routine basis in August I8GG when sufficient new instruments had become

available.

It was therefore necessary to convert the particle concentrations measured

by thermal precipitator, since March 1830, .to mass units, so that they mightbe linked with mass values, subsequently measured directly, to provide

homogeneous data for Phase II. The mass concentrations recorded in the

Gravimetric Sampling Trial also required adjustment to a full shift basis, asit had not been possible to sample during the period of the shift spenttravelling, when using two instruments side-by-side, but only at the place ofwork.

This report describes the methods of conversion and tabulates the results^

which are to be used as a starting point for the environmental measurementsin/

2.

in the second phase of the Research. It gives the mean mass concentrations

for current occupational groups for the period between the third medical

survey, March 1933, and the start of the routine gravimetric sampling in

August 1963 and. also presents the dust compositional data for these groups,

based on the analysis of samples taken during thegravimetric trial. The

method of working at the colliery is briefly reviewed.,

2. . INVESTIGATORS

The staff employed in the Research at Morrison Bust}' Colliery were as

listed below:- .

Senior Investigators

'Mr. R. Annis -

Mr. J. Edwards -

assisted by: •

Mr. A. Williams -

Mr. IT. F. Nattrass

Mr. 3. Gibbon -

Mr. T. Sadler -

Regional Investigator

Mr. G. G. Hadden

until November 19 G 3

after November 1SGG

until September 19GG

until September 18

after August 19G7

after Auus t I9G7

GG

3. METHOD OF WORKING-

Morrison Busty Colliery, which is situated in the North West Durham

Coalfield worked, during this period, three seams, details of which are given

in the following table.

TABLE I/

TABLE 1

Details of Seams v7orked

o.

;; Name ox • •S Seam1

• Earvey(Tovmeley)I

1 Busty Top; Bottomii - . • , , ,

• Erockwell

National Gearn jCorrelation Code

iii

iI ,- ~ ,_ , r

. '"'''• "•- •' (.

i

. . . ' . . . i .

I

02:470 |

1T.C.E. Coal i TAg®^2®Bank Code nr-^ ^\\ i.'-.ctrCf_ij

SOlb 0. 5S

SOI'?. 1.04SOla 0. PI

tSOla { O.C !J

In the Harvey Seam, the coal hac been v/on by plough or ccraper on 100 rnlongv/all advancing faces. v

The top cection of the Bucty Geani in the Charley North District was extractedby plough or. single unit Ipngv/all advancing faces about 100 rn in length, -but inthe South side of the colliery the coal in this seam (bottom leaf only) was v/onby pneumatic pick on longv/all faces.

The Brocl'well Cearn vrac v,rorl:ed mainly on single unit longwall advancingfaces, about GE m long, using scraper loaders or.pneumatic picks. A ploughwas used on the only double unit in this seam and a Lovat loader was triedunsuccessfully in one district.

The Harvey, Busty (South side) and Brockwell workings were naturally wetand some faces were eventually abandoned because of the make of water.Edwards & Annie (19G8b) noted that from ISGO'onwards, in spite of a reductionin the number of production faces due to mechanisation, colliery output had beenmaintained at about 40,000 tons per month until 10SG, but from June I960 tillI/larch 1937, the output dropped, to below 3G,COC tons per month and was stillat this level during the following year.

A list of working places and average monthly outputs is given in Table 2.

'i. CAKPLIITC AID EVALUATION

-•l S.T.F, Samples: ISth Environmental Survey

The design and. procedures of the 13th- curves'- were as in phase I of theResearch, and are well documented in the series of -P.-F, R.Environmental Survey Reports. The results, for I/Iorrison EustyColliery, were reported by Edwards & Annis (1038a) in terms ofoccupational group mean number concentrations.

In/

4.3

4.In the present report, these number concentrations (particles/cm.^) are

r>

converted to mass units (mg/mu) using I,_. II.Is evaluated during the

Gravimetric Sampling Trial, on the same basis as described for the

1st-17th Surveys (Edwards & Annis IQGSb).

Adjustment to allow for the overlapping of particles on S. T. P. samplesv/as by the shortened procedure described by WrJton (1G£7).

4. 2 The Gravimetric Sampling Tria_l .

The Gravimetric Sampling Trial described by Edwards & Hadden (1GG3) .

provided direct measurements of mass concentrations. . The special

requirements of the exercise led to the following differences in sampling

programmes and techniques from those of routine S*T,P. surveys;-

(i) Owing to the difficulties of keeping two instruments running during

travelling, sampling v/as restricted to the period spent at the

working place. To extend the observations to cover the full shift,

concentrations had. to be estimated for periods of travel between

pit bottom and the working places by analogy with the similar

travelling periods covered by S,T.P. sampling during the 18thSurvey. Full shift concentrations were arrived at by weighting the

working place concentrations to take account of this factor.

(ii) As movement along the faces was also difficult, sampling took placeat fixed sites associated with occupational groups rather than with

individuals. Group mean concentrations were calculated by talcingthe means of all camples taken at the appropriate face sites..

The sampling cover allocated to various face groups was roughlyproportional to the number of men in them and not exactly in accordancewith the pattern established by Ashford & Smith (105G). T.cost currentoccupational groups received adequate cover and, as the period, v/asrelatively short, it is unlikely that estimated exposures for phase II willbe affected.

Cornpo sitional Analys e c

4.3.1 S.T. P. Samples: Routine Survey's

Edwards & Hadden (1803) found in the results from the gravimetrictrials, that the relationship between the non-coal and ash

percentages was very variable and the same variability may beobserved between non-coal and ash in Table 3, but in Table 4,

however, where the results of large numbers of observations havebeen pooled, a near 1:1 ratio exists. It has been assumed,

therefore that for each seam, the constituents of the non-coal weresimilar to and present in the same relative proportion as thosefound/

found in the a ah from the filter ducts, obtained during the

' gravimetric campling trial.

The analyses of samples for the various occupational groups made

by infra-red spcctroscopy and chemical methods during the

Gravimetric Sampling Trial are taken to describe adequately the

the composition of the mineral content of the S. T. P. camples

obtained for the groups, during the 18th Environmental Survey.

V/here no figure was available, a general estimate was used for

each seam, based equally on the results of the gravimetric campling

trial and those obtained during the routine sampling in 1023 afterthe period covered by this report (unpublished data).

4, 3. 2 Gravimetric Sampling Trial

The dust from filter samples was bulbed, by operation, before

ashing and subsequent determinations of the contents of quarts,kaolin and mica were made on the bulked aches by infr-a- red

cpectroccopy.

The calcium, magnesium and iron contents were obtained by acid

treatment of the ash and subsequent chemical analysis (Dodgson &Harrison, 1SGG).

5. RESULTS AND DISCUSSION

In Table S the results for each occupational group are given, including

estimates where necessary. Table 4 summarises the data by general "class

of envirdnment",

5.1 Respirable Dust Concentrationsr*

Face group mean concentrations (Table 3) ranged, from 3.1 mg/mu (Bustyr>

Seam Face Stonernen) to 2. 7 mg/m° (Brockwell, Composite Diggers).

Elsewhere underground groups tended to have lower mean concentrations,2

although 7.1 mg/ni was recorded on a cingle sample taken with E. 24,(Busty Seam Belt Patrolmen).

2The coalface (all shifts) mean concentration (Table 4) of 4. 3 mg/m for

o

the 18th Survey and 4. 1 mg/m° for the gravimetric campling trial were3similar to the mean of the 1st-17th Surveys, v/here 350 particles/cm

rs

had a gravimetric equivalent of 4. 8 rng/m0.

5. 2 Composition of Samples

5. 2. 1 Ash and lion-Coal

The non-coal and ash fractions shown in Table 3 for occupational

groups, and in Table 4, for general class of environment rangedfrom/

6.

from 10 to 70 per cent for non-coal and from 7. 3 to G4. 3 per cent

for ash but, as noted in section 4. 3.1, there was no clear

relationship between observations for individual groups.

5.2.2 Mineral Content'of .the Filter Ash

5. 2. 2.1 Quartz made up 13. 1 per cent of the ash of camples in the Busty

Seam, 7. G per cent in the Brockwell and 10* G per cent in the

Harvey. The highest quartz in ash, 30. 1 per cent, was foundin samples taken with the Shotfirers Group, F. 30.

The range of quartz concentration, directly measured, waso

from 0, 04 mg/ni*' with the haulage workers, Group H. 34, to0.45 rng/rn3 for Face Beltman S, 55.

5. 2. 2. 2 Kaolin and Mica, were determined separately by infra-red

spectroscope'' but were reported as a combined silicates figure

to keep the results in line with those of collieries where the

use of interference microscopy allowed no breakdown. The

range of 'silicates' content in ash was from 39. G per cent for

some elsewhere vinderground groups to 73. 9 per cent for Face

Stonemen in the Busty Seam. Elsewhere underground, the

silicates concentrations were from 0. 2 mg/rn" (outbye Officials)3

to 1. 7 rng/rh (Busty Seam, Face Stonemen).

The higher.percentages of silicates in ash recorded occurred insamples where the quartz in ash figure was also high.

5. 2.2. 3 Calcium, Magnesium and Iron in the ashes were detected and •.

measured as carbonates. In the samples taken at the coalface(Table 4) calcium and magnesium carbonates represented 3.5

per cent of the ach but the elsewhere underground value was

. 10.1 per cent. Iron contents tended, to be higher, the mean forall underground samples was S. G per cent,

No analyses were available for surface groups.

The concentrations of calcium and magnesium carbonates were' o

similar to'those of iron, the ranges being 0.01 nig/m to

0.1 mg/niu.

REFERENCES

Ashford, J. R. & Smith. P. H. (1G5G). The allocation of sampling effortin environmental surveys. N. C» B, Report No. SC. 370/ER/28.

Dodgson, J. & Harrison, G. S. (1968). The compositional analysis ofgravimetric samples taken at Morrison Busty Colliery. !• Q, M, FileNo. BP. 31124.

Edwards, J. & Amis, R. (19S8a). Report on the seventeenth and eighteenthenvironmental surveys at Morrison Busty Colliery; N, C; B, Report No.PFR/ER/284.

Edwards, J. &Annis, R. (IGSSb). Summary report on environmentalmeasurements at Morrison Busty Colliery 1954 to 1967. N, C,B. ReportNo. PFR/ER/321.

Edwards, J. & Hadden, G. G. (19G8). Report on the gravimetric samplingtrial at Morrison Busty Colliery April" 19S7 to April 1938.N.C.B. Report No. PFR/ER/320.

Jacobsen, M. , Rae, S. , & Walton, W. H. (1969). The relationship betweendust and pneumoconiosis as the basis of a gravimetric standard forairborne dust underground. N» C« B» Report No. ISM/P(S9)lj..

Walton, W. H. (1937). Correction of dust counts for overlap. I»O. M, FileNo. BP. 31105 (15/9/19G7).

TABLE 2

Details of Production Faces

June 1966 - April 1968

;

Seam District j Facel

i

Busty C' North • BQ 2 (a);'• (b);BQ.lf (a)

i (b); BQ 3 (a)

ii :

BQ 1 (b).

3rd East ; Flats (a)-

; 1st North (b)5th West : (BQ 21) (a)

! 1st North(BQ.22) (b)

I ;1st North

3rd West (BQ 7) (b)

I (b)Ist^West (a)

i

! (b)

i BQ 12 (a)

| ;BQ 9 (b). , . ... . ..

>BQ 10 (b)

i 5th WesttBrockwell Main South : (S.ii) (a)I '

; 5th West: 3rd Northi (S.13) (a); 5th West

* 1st South(S.17) (a)

: 5th Westi lrth North (b)

Average| Monthly

Method of W or king | Outputjby SeamI (tons)

iS.U. Longwall Advancing Plough;

ii

S.U. Longwall Advancing Plough >ii!

S.U. Longwall Advancing Plough j

iS.U. Longwall Advancing Plough'

Bord and Pillar ;

t

S.U. Longwall AdvancingDiggingj

:"

S.U. Longwall Advancing Digging:

;S.U. Longwall Advancing Digging;

;

S.U. Longwall Advancing Digging!

S.U. Longwall Advancing Digging

S.U. Longwall Advancing Digging; .- ... _ ,«.. _

S.U. Longwall Advancing Digging; 20,200

•S.U. Longwall Advancing Scraper

j

(Lovat power loader L.H.S. July1966 - January 1967) ;D.U. Longwall AdvancingDiggingj

.'

S.U. Longwall Advancing Digging' :;i

; (S.14) (a) ;S.U. Longwall Advancing Scraper j

(a) Closed during period

(b) Opened during period . TABLE 2Sheet 1

TABLE 2 (Contd.)

Details of Production Faces

June 1966 - April 1968

Seain

Brockwell(contd. )

Harvey(Towneley)

iDistrict i Face

i!iI

3rd West JNo.2 (a)!(Drift (a)j(S.3) (b)I

Drift ; ?th EastI (N.7) (a)iI| 5th West (a)iI 8th EastIN. 8jMain South! •

JN. 11 (a); (b)iN. 12 (a)

•N.9 (b)

N.13 (b)

Method of Working.

S.U. Longwall Advancing Plough

S.U. Longwall Advancing Scraper

D.U. Longwall Advancing Scraper


D.U. Longwall Advancing ScraperTraining Face (Scraperinstalled March, 196?)

S.U. Longwall Advancing




Average Monthly Output

Average Monthly Outputduring 1?th Survey

Average ;MonthlyOutputby Seam(tons)

'

5,800

12,300

35,700

41, 400

See footnote Page 1

TABLE 2Sheet 2

TABLE 3

MORRISON BUSTY COLLIERY

Summary _of Results since 3rd Medical Survey (March 1966)

; Place of Work \.Dec.

1 'Groupi Seam • | District 'Serial

; M• No.

I

ii Busty 3rd West JF.162

ii

i • i, :F.163

•!

i •.5th West ;F.12

;•••

^IF. 50

: • ;• '<

I

i :C 'North 'F.48:

; JF.181!

;A11 jDistricts F.35

; '

I +

:F.56j

' g: i

|F.95

i MassDescription ! Number

Index

•

Diggers (Digging Face) ;14.60

Face Stonemen 12.65

Diggers (Digging Face) ;

Face Stoneraen

ii.

Face Stonemen .12.65!

Face Team {Plough) 12.45

Pullers

Face Beltmen |14.60

Timber Drawers

18th Sui-

1-5um Non-Cone . Coal

. Vcm3 %

j£230(3)60 20

150(2)40 40

i

i

i

320(1) .

40

666'(4)260 10

• '340(1)- 16

i

irey Grav. Trial

Hesp. ;Resp. HeanDust Dust ; Ash AshCone. -Cone.mg/nr |mg/nK ; % %

\ . '.Ju • Jt

3 6.5(3) I (D0.8 j - 7.3 16.8

1.9 ' 4.6(2) ; (3)0.4 ; 1.4 34.1 36.5

; 3.1

1.3 7.3 7*3

6.1(4)0.3 :34.1 ! 34.1

4.0 • 6.6 !(1) ! (3)- ; 3.9 34.1 35.6

!

7.5 ! 5.1(4) i (11)3.2 I 1*7 17.8 : 15.7

i

2i8: (8Ji 1 64,3 64*3

(1) ...:

. , -. , 17.8

i ! .

i ! ! 30.4

Quartz

fo

8.4

14.5

8.4

14.5

14.5

12.6

16.8

12.2

Ash Analysis ; Hef ji C<

Kaolin ;Ca.Mg Iron ; ReSp.and ; as ; as Dust AshMica iCarbs.' Carb. :t P -.% '- c/o '• % rag/m : mg/m-

t -

7*• : 4.2 0.71, C*)

51.2 ,n.a. n.a. 1.5

: 3.5 1.27(5)

78.9 3.7 5.6 1.9

: 3.1 0.23\ ^ (7)

51.2 'n.a. n.a. 1.3

6.1 : 2.08(4)

78.9 :3.7 \ 5.6 i 0.3 ;i . :

i 6.0 2.14i : (4)

78.9 :3.7 i 5.6 ; 3.3 ;! - '; : ; 5.7 ; 0.89

; : (15) '•• 71.9 |5.2 : 4.0 2.4; ! ' ; :

: 2.8 1.80I (8) i

72.3 :4.9 ' 6.4 1.4 :

i i : (i) .i

i 1.4 6.43

! 68.0 ;4.3 . 5.4 '' » .

jncentrz

Quartz

mg/m3

0.06

0.19

0.02

0.30

/

0.31

0.11

0.30

0.05

I

itions to Date '

Kaolin Ca.Mg ilron |and : as ; ; as !Mica ! Carb e » Carb . i

mg/m^ ! mg/m-! jrag/nK I;

i . I i6.4 ; n.a< .: n.a. !

|i . i; „- ,..-!

1.0 0.05 ;0.07 i• • I

i

0.1 : n.a. n.a. j

! ! :

1;7 0.08 0.1 jIi

1.7 0.08 :0.1 |•i

. , j• • i

Oi6' 0.05 0.04 ;I

i... i

• .: '1^3 0.09 Oil j' '•'"'. : '

i

! ' : !

; j

0.3 ' 0.02 ;0.02 1i

.- i

4 Results obtained before this period

+ Analysis only available after this period

* Closed and unsampled

n.a. Not available.

X 236 Mean Group Concentration p/cm"(3) No. of Shifts sampled60 Standard Deviation

#3.4 Mean Group Concentration mg/m(3) Mo. of Shifts sampled0.8 Standard Deviation

TABLE 3

Sheet 1

TABLE 3 (Contd.)


Suooary of Results since 3rd Medical Survey (March 1966)

i Place of Work

Seam

Busty(contd.)

District

AllDistricts

"Occ.Group DescriptionSerial,No.

(S tent on, )• Diggers' Mothergate )

F.161 . '(and Composite)(contd.)

Ii .F.169 Cuttermen and Scuff lers

!!

i

!

(F.lS f j Spare Facemen

1 .[j

E.12 Loaders

£.21 Belt Patrolmen

+IS.32 Locomotive Drivers

»4. |

S.43

E.641 1

i2.69

i t,

+Brockwell Main South JF. 138

i 18th SurveyMass iNumber i ~-?um

Index JConc-

i p/cmi

120(1)

13.96;110(D

i 150(D

14.60

i

i

i 540! (1)

13.21

! 90(1)

13.21

t 176(1)

Deputies 16.89 i -

| 40Haulage, Haulermen i (2)and Wagonwaymen 13.21 20

j

General Workers (incl.Whitewashers and Shifters)

Non-coal

10

Kesp.DustCone,mg/m?

rlfl

1.7(1)

—1.6(1)

20

40

H

2.1(1)

7.1(1)10

-

1.21 (1)

Grav. Trial

Reap.DustCone,mg/m^

AshMeanAsh

T27.-0

5.6*(2)3.0 22.2

Ash Analysis Mean Concentrations to Date

;Kaolin ICa.Mg Iron Re , -Quartz i and as as Ash

i Mica Garbs i Garb.

I z'• -\ n

i ! (1)i

—

j 1.6 0.43I i

i Kaolin Ca.Mg | ironQuartz i and as i as

j Mica Carte- j Garb .

mg/m5 | mg/nr mg/m i mg/m5

0.05(1)

12.2 68.0 4.8 5.4i

I ' 2.1i

54.0 12.2

PP~P 7 7C-d + C. ( + (

\

f

40 -.

!'2.9 T f I(1)20 | -

i0.5

i

i3.2

! (2) (1)30 { 0.3

!29.7

i129J9

4.6(2)

| 1.0 26.2 V26.2

i ! ! i 'i 160 i i 2.9 i

Diisers (l>iesing Face ) ( 1 ) j ( 1 )(and Mothergate) 18.23 - : 10 ! -

i

1 1(1)68.0

59.1

!

9*1 39;9

9.2 42.6

4.8 j 5.4 ! -. . .i i

I i; .5.6i (2)

11-.8 I 6.2 3-.0

\,„ „ i

7.1(1)

—1.2(1)

11.1

9.8

_

!

!2.9(1)_

'1.4I (3)

n;3 ji.6|4.6(2)

9.9 1.0i2.9'(1)

1.13 0.14"

1.24 0.10

t

i

iIr0.42 i 0.04

1.30 0.11

!

1

i ;

0.3 0.02

6.8 0.05

0.7

0.2

0.5

0.1

»•

.i0.02 f

0.06 '

0.08

i; !

„ j

0,05 '0.05 i

I \0.1 |0.1 I

;! I

1 i

:

I I i i I : ! . . ; . i

For footnotes, see Sheet 1 T/J3J.E 3Sheet 2

TABLE 3(Contd.)

MORRISON BUSTY COLLERY

Summary of Results since 3rd Medical Survey (March 1966)

Place of Work L•Occ.

Seam

Brockwell

(contd.)

"Group

District . .

• - * " •

Main South(Contd.)

F.53

F.134

F.189

Main Southand +

3rd West I F.186

3rd West F.182

I

F.180

F.179

•fF.187

All Districts(except3rd West) F.117

i 4F.36

i ^i F.122

18th. Survey Grav. Trial j Ash Analysis Mean Concentrations to Date

DescriptionMass jNumber ;1-5umIndex ! Cone.

j 320 X

(2)Face Stonemen 7.53 260

Fillers

if

i

Face Team (Lovat)

! 520(1)

Scraper Attendants 17.20, 1

340(3)

Diggers (Stenton) 13. 40 340

Face Stonemen

Face Team (Hough)

r 100(1)

7.53 j -

., ; i?esp.Mon- i _. ^,-, n i DustCoal i „0, \ Cone-% fiig/m y

2.4I (2)

40 1.9

Resp.DustCone...mp/m J

1.9(2)0.1

!

}

8.9(1)

2.1(1)

70

! 4.6(3)

40 4.6

6:8(1)

20

200 3.4(3) (3)

16.53 100 20 1.71i

Face Team (Hydrocel) i

240 3.3(1) (1)

Diggers (Stenton) 13.40 j - 40I

PullersI . i

! Mean (Kaolin Ca.MgAsh ! Ash iQuartz j as as

i'3 /o /o /o %

Iron pas J£SP' j Ash IQuartzGarb . i s. -z , J> , 3

% I ins/m- i ing/m mg/m

I 1 2.2 1.02 0.08i (4)

52.7 : 46.4 7.9 n.a. n.a. n.a. j 1.1 |L i

; i

iI 2.5 6.89

35.6 i 8.6 56.4 0.8 4.6i j i 1| | I 2.5 0.89j :35.6 8.6 56.4 0.8

ii ' t " •

, n.a. n.a. n.a.

50.0 60.0 • •! 1

1

45.0 8.6 | 56.4

I 22.5 8.6 56.4

22.5 8.6 56.4i.... _.

j i

i '

35.6 ; 8.6 56.4

'i

ji

i28.0 ! 8.6 56.4

1

iCuttermen i J 35.6 8.6 56.4

0.8

—4.6

6.08 "

KaolinandMd^ca-z

Ca.Mg Ironas asGarbs „ Carb.-zmg/m J ty.^m-'

n.a. n.a. n.a.

'"075i

'O.Q'1 0.04

j

0.08 0.5 0.01 0.04

n.a. 5.5 3-00 n>a-

4.8

4.6! (3)

4.6 ! 4 6

| 0.8

0.8

0.8

0.8

(1)4.6

3.4(3)

4.6 1.7

3.0_

4.6

i 3.3| (D) ~1 :....i

2.2_

0.8 4.6!I 1.8

2.07

6.18

0.77

1.1

n.a.

0.18 1.2I

i

0.02

0.07

0.09

0.62 0.05

l_ ':

0.64 T 0.06

—0.8i i i ! :

4.6 •-

0.1

0.4

"o7o~"

0.3

0.4

n.a. n.a.

.. 1

0.02 0.1

i0.01 0.01

0.61 6.04

I

"•raH-OTs•

, i0.01 0.03

I6.61 6.63

i! * 1

For footnotes, see Sheet 1 TABLE.3Sheet 3

TABL5 3 (Contd.)

MORRISON BUSTY COLLISHY

Summary of Results since 3rd Medical Survey (March 1966)

1 Place of Workt

Occ' Massi Gr°up Description Number

Seam i District Serial IndexNo.

!•

Brockwell j All Districts. 4(Contd.) . (Contd.) !F. 183i

...

+3.22

j

. 4' . ! E.39

larvey(Towneley)

j

Drift

AllDistricts

.

F.148

F.164

1

F.165

F.160

+F.185

F.55'

I •*•33.20

E'.41

Spare FacemenL:I

Belt Patrolmen

18th Survey

1-5um Non_Conc- Coal

Sesp .Dust

p/cm- % mg/nrij

13.21•

i

140 X(1)

20j I7

Deputies

Face Stonemen

Scraper Attendants

."•"

2ace Team (Plough)

(Stenton andDiggers Mothergate )

Spare Facemen

Face Beltmen

Belt Patrolmen

Deputies.

11.40

17.21

17.21

580(4)

1.9 *(1)-

6.6(4)

500 30 5.7

220 3.9(2) (2)40 j 30 0.6

310 ] 5.4(2) (2)160 40

110

13 74

18.10

(2)20 20

2.7

1.6(2)0*2

196(1)

30t

1I

.M».i70(1)

13-.21 - ! 20

I

Iii

3.5(1)-

0.9(1)_

Grav. Trail

Resp.DustCone.mg/m

Ash

%

i

MeanAsh


; Kaolin iCa. Mg IronQuartzl and as as

Mica i Garbs. Garb.

% %

\

35.6 8.6

22.5

£i3.1(7)

67.0 8.6

i1.3 19.5 ,| 23.3

3.6(8)1.8 23.4

3.1(4)1.3 51.2

5.1(7)0.8 37.4

I

12.7

i

24.7 J13.9i

i

47.5 19.2

"•

33.5 22.8j

4.4i

(3) !1.6 34.6 34.6 I29.5

„ i. „

i

iti

i

;} 2.9'"

(1 ) ' i

I • 22.2 22.2 ! 7.7

% % ^%

Resp.jDust Ash

mg/m I mg/mrf\

2.5 ' 0.89

56.4 0.8I

I

i —4.6

—

1.9(1)

-

1.7

0.43

1.14

Kaolin \ Ca.Mg IronQuartz and as as

Mica I Garbs. Garb./ 3 / 3 ' / 3 mo./«3mg/m mg/m mg/m mg/ra

i

0.08 0.5 0.01 0.04i ' :

1

i ii Ij

6.16 I 6.6 b'.bi' 6.65i

56.4 0.8 4.6 - '

53.2 10.7 14.8

i

n.a. 9.8 13.2

n.a.

i .. .

8.2 9.0

!•

n.a. i 6.5]

11.7

1

i

4.4 1.03(11)

0.13 0.55 0.1 0.2ii

3.7

3.6 6.89 6.12 n.a. 6.69 6.1(10)1.7

0.35 i n.a. 0.1 0.2<,&; ' ! '2.1

4.3(9)

1.44

1.7 i

3.5(1)

1i _... .„..

n.a. 5.5 7.3

4.4(3)1.6

' 1 . , _.„! * ] 0.9

1.52

i (1)

Ii

0.33 n.a. 0.09 0.2

i

:

0.45 n.a. 0.08 6.1

i

2.9 0.64 0.05 o.4 0.08 6.64i i (1)

; 59.1 | 11.8 6.2i

| j

For footnotes, see Sheet 1 TABLE 3Sheet 4

TA3LS 1) (Contd.)

MOHHI30N BUSTY

Summary of Results since_3rd Medical Survey .(March 1966)

i Place of Work 0cC0

Seam

:

Harvyy(Totoeley)(Contd.)

District

AllDistricts

(contd.)

i1

ii

\

i

i

GroupSerialMo.

+E.54

E.63

E.70

F.60

p. 111

+F.128

3.28

3; 29

S.30

E.31

E.34

1

i iI 18th Surveyi

!

Description

Stonemen ( outbye )

Haulage , Haulerinenand Wagonwaymen

General Workers (incl.)Whitewashers & Shifters)

•Shotfirers

Timber Leaders

Borers (Coal and Stone)

Salvage

Stonedusters

(Full-timeFi tters (underground )

1 Pipemen

Masons

MassNumberIndex

11.61

13.21

16.89

1-5,umCone.

p/cra

Non-Coal

%

X60(1)

,

170(1)_

20

30

!

290

(2)160

i

16.89

20

i.. , ..;.{ „ .. .

180 i(1)

30

i

iI

Sesp .DustCone.rng/m3

%0.7(1)-

2.3(1)

4.9(2)2,8

3.1(1)-

iGrav. Trial

I esp.DustCone,mg/nr

w*(1)-

2.6(1)_

4.3(4)1.2

3.8(3)0.5

3.6(3)1.9

3.7(2)0.7

3.8(2)3.0

i

|

j

i

2.5(1)_

2.7

Ash

#

29.7

.22.6

10.8

34.6

22.6

22.6

22:2

29.7

(1)1 29.7!

MeanAsh

%

29.7

26.3

13.9

34.6

22.6

22.6

22.2

Ash Analysis

i

Quartz

%

\

9.1

9.2

30.1

29.5

9i2

9.2

7.7

29.7 9.-1

29.7 I 9.-1;

Kaolinand

Mica%

39.9

45.3

n.a.

n.a.

45.3

45.3

59.1

Ca.MgasGarbs •%

11.1

IronasGarb.%

11.3

8.4 8.4iIi

n.a.

5.5

8.4

n.a.

7.3

8.4i

8;4

11.8

39.9'

39.'9

11.1

8.4

6.2

Mean Concentrations to Date

Resp .Dust

mg/m

i0.7(1)

-3.2(1)-

2.4(2)

I 0.7

4.5(6)1.5

3.8(3)0.5

Ash

mg/m

0.95

0.63

0.63

• -

Quartz,

mg/m

i

0.09\

0.06

0.19

I1.31 0.39

3.1(1)-

3.6(3)1.9

3.7(2)0.7

3.8(2)3.0

2.5! (1)

11.3 -i..._I 2.7(1)

11.1 11 .3i

i _

0.81 0.08

10.84 0.08

KaolinandMicamg/m

0.4

0.3

n.a.

Ca.MgasGarbs-mg/m

0.1

0.05

n.a.

n.a.

0.4

1 0.4

o.84 0:06

0.74 0.'07i

0.5

0.3

0.07

IronasCarb.mg/m-^

0.1

0.05

n.a.

6.1

i

0.07 0.07

i

0.07 6.07

0.1

0.08

i

r ...j. a L _0.8o 0.07

I{

i

0.3 0.09

0.05

0.08

0.09

:

i


TABLS 4


Summary of Mean Concentrations and Composition of Airborne Dust" • by Environment

Mean ConcentrationC O M P O S I T I O N A L A N . - A L Y S I S

Environment

MechanisedFilling

Hand Filling

Preparation

18thSurvey

p/on3

370(1Q)

280(8)

290(8)

Development in > 2.60Coal

COALFACE(All Shifts)

Hand Heading

(5)'320(40)

(0)

Elsewhere 90Underground ( 1 1 )

Surface (All 90 .Occupations) (2) :

18thSurvey

mg/m5.0(19)4.2(8;3.5(8)3.5(5)4.3(40)

„ • MeanGrav. . toTria1 Date

rag/m mg/o4.1(39)3.7(9)

3.8(18)4.8(9)4.1(75)

i

(o) ! (o)

4.4(58)?-9x(17)

3.7(26)4.3(14)4.2(115)

(0)

1.2 " 3.5 2.7 "*(11) I (21)

1.0 i 1.2

(32)

1.1(2) i (4) i (6)

, Non-Coal18thSurvey%

30

15

30

30

30

—

IA 1 'Ash-

Grav.Trial

•%

28.2

11.1

44.3

31.5

30.9_

30 25.4

"MeanAsh

%

28.8\ '12.9


Quartz

%

..16.6

9.3

39.9 15.1

31.0 24.4

30.6 16.5_ _

27.0 9.7

KaolinandMica%

69.8 ....

55.2

70.3

n.a..

67.5.,

Ca.MgasGarbs.%

7..Q .

3.7

5.8

IronasGarb.%

. »,3

5.6

8.0

Ash iQuartz

3 • 3mg/m [mg/m

KaolinandMica,

• mg/nr1.27 0.21 0.9

0.50 0.05i

1.48

1.336.5 11.7

6.5

47.6 J10.1i

i

15 27.7 ! 23.5 n.a. ! n.a. n.a.

r8.6

0.22

C.33

1.29 0.21

~

! 0.738.7

-

0.07

0.3

1.1

n.a.

0.9

-a. Mgas

Garbs.mg/m

0.09

0.02

0.09

0.09

0.08

- -

0.3

.; 0.26 j n.a. ; n.a.n.a. •• i

0.07

n.a.

IronasGarb.mg/m30.1

0.03

0.1

0.2

0.1

-

O.c6

n.a.1

Figures in brackets indicate number of shifts

t?d•£>

n.a. not available

MOgni^ON BUS-:.'i CDLLIggY

Summary of Results since 3rd Medical Survey ('March 1966)

Place of Work

Seam

All Seams

Surface

Occ.iGroup

District |SerialNo.

AllDistricts

/

3.37

f2.73

4JS.77

All Districtsother thanGeneral E.66

S.11

ISO -i

i

.

Description

Onsetters

Steel Checkers

(Eug)

Fitters and Electricians

Other Officials

V/ashery (incl.Wagonmen) -

MassNumberIndex

13.21

13.21

10.94

Others

18th Survey

1-5umCone.

•2

p/crn

X110(1)-

70(1)-

90(2)100

Non-Coal

%

Resp.DustCone.rag/m3

it""~ ""'"2

40

40

15t

•

1.5(V-

1.0(1)- •

0.9(2)1.1

Grav, Trial [

Hesp .DustCone.

J3.0(1)-

1.8(2)0.0

1.0(3)0.0

1.6 ,.(i) '

—

Ash

0>/o

22.2

29.7

27.7

KofcnAsh

29.0

Ash Analysis.

Quartz

0'10

*

11.6

tI

31.1

27.0

34.3

23.5!

"T"i

27.7 | 27.7

7.7

•

Kaolinas

Mica%

• -•>

51.1

59.1

11.6 51.1| i

9.1

n.a.

39.9

Ca.Mgas

Garbs.%

IronasGarb.

L %

. l-

6.8 7.8

11.8

6.8

11.1i

n.a. n.a.j

6.2,.

7.8

11.3

n.a.

•

• i • • •n . ci . n . a c In . a .

Mean Gohcentrat.ions -to^ Datei

.Rcsp.Dust

me/m

i. 0.3

_

2.2(2)1.2

2.0

-

1.5(3)0.6

1.0(5)0.5

1.6(1)

n.a, -.

Ash

mg/m

0.09

0.68

0.54

0.52

0.24

Quartz

mg/m

Kaolin Ca.Mgand as

Mica Garbs.

mg/m mg/m

0.01 0.04

0.05

0.06

0.05

n.a.

0.44

0.01.

0.4 0.08

0.3

0.2

n.a.

in.a.

i

n.a.

0.04

0.06

IronasGarb.ing/ra5

0.01

0.04

0.04

0.06

in.a. in. a.

1

. n.a. n.a.


HEAD OFFICE:

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