The work related or occupational disease are those diseases, which arise out of the factors at work or related to working conditions that either cause or contribute to disease or result in the deviation from normal health. During work, the workers exposed to toxic hazards of different chemicals, fumes, gases; physical factors like noise, vibration, radiation, heat and other micro climatic conditions; biological factors like viruses, bacteria, parasites, and mould; mineral dust like silica, asbestos, coal, manganese, cadmium etc. and ergonomic hazards. It is a much known and unpleasant truth that since the time of Hippocrates, silicosis is a still the most widespread occupational disease. Until today, 350 chemical substances have identified as occupational carcinogens. Exposure to thousands of allergic agents including vegetable dust is a growing cause of work related illnesses of skin and respiratory system (particularly occupational asthma).
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.