Distribution and Incidence

Each condition has been described among workers exposed to coal dust (CWP) and cotton dust (byssinosis). Perhaps 1 million workers worldwide are currently exposed to both coal and cotton dust. The most reliable statistical accounts of the conditions, both contemporary and historical, are available in British and American sources. The historical and geographic incidence of each condition (and of the particular diseases defined at each time of writing) has been influenced by public policy and regulations for dust suppression, by the characteristics of the mining and manufacturing process (and, for black lung, by the type of coal itself), by the workers' general state of health, and by their exposure to other causes of respiratory disease, notably cigarette smoke, and by the availability of publicly supported

Your Heart and Nutrition

Your Heart and Nutrition

Prevention is better than a cure. Learn how to cherish your heart by taking the necessary means to keep it pumping healthily and steadily through your life.

Get My Free Ebook


Post a comment