Document 993mLB9mmoVYn09dyMpJRYJQL
FILE NAME: National Safety Council (NSC)
DATE: 1948 Jan
DOC#: NSC016
DOCUMENT DESCRIPTION: NSC - National Safety News - Industrial Health Pneumoconiosis in Coal Miners
lll il
In d o s t r ia l H e a lth
Highlights in Industrial Medicine, Hygiene and Nursing compiled by F. A. Van Afta, Industrial Department, NSC
R ehabilitation
Hostile Dependent Behavior in Rehabili tation--of Veterans with Psycho-neuroses and of the Industrially Injured with a Psy
A classification of these individu als in terms of the nature of their demand for protracted care is given, depending on whether their' hostility
chologically Protracted Convalescence. Al fred P. Solomon. Industrial Nursing 6:9-14 (October, 1947).
is the result of a feeling of frustration, displacement, rejection, revenge, or is a form of defense against being taken
If the title and the first sentence advantage of, or a form of provoca
"In every treatment involving psy tion - inviting attack on the patient.
chiatric understanding, the therapist
must be aware of the degree in which dependent impulses color or motivate ' the presenting symptomatology" do not serve to completely discourage the individual uninitiated in the patois
Lead Control
Control of a Lead Hazard i n , the Brass Foundry. L. E. Hamlin and H. J. Weber. The' Journal of Industrial Hygiene and Toxicology 29:567-377 (November, 1947).
of the psychiatrist it becomes appar An extensive lead control program
ent in a comparatively short time that has been carried on for four years in
what is actually being discussed in this the plants of the American Brake Shoe
paper is the impulse of certain types Company where the hazard exists. At
of individuals to remain dependent mospheric lead concentrations have
upon their industrial compensation been determined and weekly or month
or their federal pension. These are the ly spot samples- of urine collected.
individuals who develop an endless The urinary leads are determined by
variety of symptoms which will pre the polarographic-method and the re
vent their return to work and who be sults are classified on the basis of 200
come suspicious or enraged if their micrograms or less of lead per liter
symptoms/, are-not recognized; as be- of urine being nonsignificant; 200'to
-ing related: to; their, original -.-iniurv .300 micrograms per liter indicating
or are. Considered tty be not sufficient" the need for some precautionary meas
-to prevent their return to work. '--
ures and 300 micrograms per liter or
-. . There) is comparatively'1little inter-1 more indicating a definitely excessive
est in these individuals on the part of absorption.' ' ... cry.;.,:- .
insurance, claim adjstars or Indus-.trial physicians. T hey are generally rather readily recognized as not hav ing a- medical o r surgical condition which prevents their return to work and their claim to further compensa tion is dismissed rather- abruptly.
A further complication in these conditions is the ability in some states to trade a lump sum settlement for a protracted disability and the occasion al awarding of permanent total dis-ability compensation for traumatic neurosis. ,
Symptoms of lead intoxication were found to occur very seldom.unless the urinary excretion was over 300 micro grams per liter. Arrangements were made to have an immediate medical examination of all employees whose urine samples were in this dangerous range. Arrangements were also made to keep the medical department in formed of transfers within the plant and of the disposition of employees coming to work from episodes of lead intoxication.
While these psychologically pro longed convalescences can be fre quently cured by a lump sum settle ment psychiatry should produce a b e tte r method with a psychological rather than an economic orientation. A revision of some of the state com
A running record, of the urinary lead determination is kept for each employee and by following the trend of the determinations it is possible to catch increasing absorption and head off cases of in to x ic a tio n in many in stances. .
pensation laws to treat these cases Parallel with^the program of medi
more realistically might help.
cal control a program of air analyses
4&
and engineering control of the
sures was undertaken. The correlation
between the stock urine samples
"f
the air samples is startingly close,
is noticeable that in a plant of
employees reduction of the averag
concentration of airborne lead frofj
20 milligrams per 10 cubic meters
2.8 reduced the number of 'cases 1
lead intoxication from 10 per year ` _
0 and that in a plant of 525 employee||
^reduction of the airborne- lead fr
11.3 to 5.6 milligrams per 10 cubits
meters reduced the number of lead :
toxications from 14 4c 4 cases
year.
The weaknesses of spot samples <
urine are recognized but when a lar| * `
number of samples are taken as in th
program and the general trend of' tl
excretion is studied, rather than er
phasis being placed on the result ofi single sample, valid results are oj tained and it is possible to locate it ,
rwf-abrlc b martr
points at which excessive absorptiq
is taking place.
The precaution necessary in the eg
lection of such samples and-in the ;
* - -
lytical procedures are discussed rathl ""
briefly,
" ,
From these results the authors "
"
that tlie generally accepted safe 1
l. 1ill,!2
of 1.5 milligrams of lead per 10 cul|:.:jl, 'jM lIg"""""
meters of air is low as they have four
no cases of lead intoxications vvxSitr:.
concentrations -of airborne lead bell
3 milligrams: per ten: cubic meters!
Pneumoconiosis m I
Coed Miner-s
Pneumdnbcbniosis in Coal` Workers1 Wales: J. Gough. Occupational- Medici 4:86-97 (July 1947).
The greatest pneumonocomoj problem in Britain has been an d " the coal mining industry in Wa About 14,000 men are currently tlfied as disabled by this disease an area which neve:: employed me than 250,000 men at any one and now employs only 108,000.
Both anthracite and bituminc coal are mined in the area but greatest production is in a graj known as -semi-bituminous or ste coal. The rate of pneumonoconi^J is highest in the anthracite mine; as is the experience in other mini regions, hut it is also seen in the ers of semi-bituminous coal anil) men who have screened coal and ed it into ships but wbo have ne$
--To page;|
National Safety News, January, V)f
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ar till `WUlttm,
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a , "XwiJ woipctej
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hen we
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nese expos'
in indicatioj
;er some pKj
ten place
ty of the
lay not wisS ivsical exam controlling re is still a.S ent and perijj ;. T he pre-] in indicate employee,, reted as exposure;-]i logical- elm i employee rplo.ymentp ;en no hap le to detect? nd make -i se. Proper ! stituted ajjcl /e a feeling ure was a-i
...ik e 's Sli
, /s
h i,
i for iristru^ Safety tra | you. Howfi the- scheffip
that, "Buf
ack'son c& said, "isyj
whole johf rost partid p course, les, and' I' d I 'll wor >rs."
we've fo H e's tali ducation i
i
tes in eae -.A ctl'y a ted
not a s? =t is fo r tb andle-- a r ' avy. I thh Mac and
t fro)
3 set-up luiij! next Alavjijj .y o u so-ah!
Jjjginess anymore: I've realty got' to '11 Jackson on a safety program, be cause now I want to stay. I want to s[gy here with a job and enough money to buy a home, and a sense of ' accomplishment to keep up my self-
respect. And Susy's respect. (To be Continued)
Industrial Health
From page 46
done any underground work. /'Som e of these miners show a massire fibrosis in the lungs which is ought to be the result of the modi-
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fkficadon of tuberculosis by coal dust. 'Others show the classical nodular fsiiicasis. These are mostly men who ISiave been engaged' in drilling rock. ,ese two classes of disease have in recognized for a long time and bre comparatively easy to diagnose, fbut since 1943 X-ray reticulation has been recognized in Britain as an
gadication of a type of disease which ptgcompensable.
KBy comparison of the roentgen ap pearance with pathological sections 'ifhas been demonstrated that the peculation is the roentgen representjition of a modular, fibrous lesion
hire appear black in the section may be hard or may be indis-
|iljmishable by touch from the surKfimding tissue, depending upon the 8 B p |m ti-o f. fibrosis present. These `B pSpSav a re' often/ accompanied by MffiPpKsema which seems to be evenjfflfetoiffiD on in this type of disease
classical- silicosis but the appearance of the reticulathe same whether or not there ||||g p y emphysema present. This is aB ^iactor which makes"the objective ^yV gation of the disability from this ^ p fc ^ e-m o st difficult.
jHlieeiit Workers
.yg&Mployability of Silicotic Subjects, Sum| ! ^ *>/ Report of trie Minnesota Survey:
ti. Gardner. Occupational Medicine (Wy 19),
3r6 Saranac Laboratory made an ,,IK^Hgation of the employees of five
'rdhe Minnesota iron mining comUi to find whether there is a risk
skL C0S*S ^ is Tdustry. Following ^ ^ demonstration that the silicosis
pen pit mining is negligible ffig&Aiardner was asked to express his Bjpipnal views on the employability Igp'ersons with silicosis for the beneB g p the Minnesota Industrial CoroiSSaon.
January.
Szfeiy News, Janar, 948
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