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The
study on insecticide hexachlorocyclo-hexane (HCH) was of its
own kind that covered all the four HCH manufacturing units in
the country. Beta HCH was found to be a predominant isomer
present in the blood samples of exposed workers. This is
due to accumulation of Beta-HCH which is a stable
isomer, has a long half-life and is almost
non-biodegradable. Beta-HCH was found even in the serum
samples of workers who had discontinued their jobs
for several years. Therefore Beta-HCH is taken as the
marker for cumulative exposure for HCH and lindane for
immediate past exposure.
About
25% of serum samples of workers with significantly high levels
of serum HCH residues showed circulating immune complexes(CIC)
of IgG and 20% showed CIC of IgM whereas CIC of C3 and C4 were
not detected. Electro cardiogram abnormalities such as Left
Ventricular Hypertrophy (LVH), Left Anterior Hemiblock, Right
Bundle Branch Block and Wolff Parkinson White Syndrome were
reported for the first time. Increased activity of Lucine
amino peptidase. 5-nucleotidase, and Gamma Glutamyl
transpeptidase, Ornithine Carbamoyl Transpeptidase was also
observed.
Asbestosis
Byssinosis
Pneumoconiosis and Other Respiratory Morbidities Among Coal
Miners In India
Noise Pollution and Health Effects
Occupational Exposure to Heavy Metals
Occupational Exposure to Organochlorine Pesticides
Agricultural Ergonomics
Women in Industry: Health and safety
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