燃煤型砷中毒20年不同环境下的流行病学调查

Epidemiological investigation on coalburning type of arsenic poisoning in different environments within 20 years

贵州省某地１９７６年发生８７７例燃用高砷煤引起中毒，２０年的防治结果表明他们的外环境及人体尿、发含砷量、病情、新发病例等均有显著差异，但病人的皮肤损害病征检出率却无显著差异；而味觉、肝区痛、眼部疾患、胃肠道疾病、肢端麻木等非皮肤病征有显著差异。虽所有患者均接受过多次系统排砷治疗，但病情的下降显著以停用高砷煤，改善了环境的为最好，故认为改善病区的高砷环境是防病的首要措施。同时提出本病的治愈标准不应该以皮肤损害病征为主要指标，并探讨了非皮肤病征作指标的可能性。

In 1976,877 cases of arsenic poisoning were found due to burning of hyperarsenic coal in Guizhou Province.Twentyyear control results showed that the living environments,the arsenic contents in human urine and hair,patients' condition,and rate of new patients had marked improvement.There were significant differences in detectable rate of nonskin signs,such as taste sense,liver pain,eye diseases,gastrointestinal tract diseases,and acroparesthesia.But there was not significant difference in detectable rate of skindamage signs.Although all of patients was treated by medicine for many times,it was the best method to stop using the hyperarsenic coal and to improve the hyperarsenic environments.At the same time,we think that the skindamage signs should not be the major indicators of curable criteria and nonskin signs may become the indexes.