A total of 4865 patients with arsenical dermatosis (ASD) were thoroughly examined for clinical features in 300 rural areas. The field survey was initiated in 1983. It included clinical investigation, collection of tube well water samples, nails, hairs and skin scales of patients. The cases of mild complications, such as asthmatic bronchitis, received treatment in the field. However, serious cases with complications, such as ascetic jaundice, were admitted to the hospital of the Calcutta School of Tropical Medicine (CSTM), India, between 1983 and 1987 (Saha, 1984; Saha, 1995). After 1994 a collaborative study was done with the School of Environmental Studies (SOES) of Jadavpur University. In this institution arsenic content has been measured by flow injection hydride generation, atomic absorption spectrometry (FIHGAAS) (Samanta et al., 1994). Even after working for 17 years, we feel we have only seen the tip of the ice-berg.
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If you suffer with asthma, you will no doubt be familiar with the uncomfortable sensations as your bronchial tubes begin to narrow and your muscles around them start to tighten. A sticky mucus known as phlegm begins to produce and increase within your bronchial tubes and you begin to wheeze, cough and struggle to breathe.