Because arsenic is a carcinogenic chemical for human and associating with more diseases, the arsenic health standard in drinking water should be revised to low limit for human body safety.
由于砷化物己确定为人类致癌物，且与其它一些疾病相联系，需要研究修订出更安全又可行的饮水砷卫生标准。
Because arsenic is a carcinogenic chemical for human and associating with more diseases, the arsenic health standard in drinking water should be revised to low limit for human body safety.
由于砷化物己确定为人类致癌物，且与其它一些疾病相联系，需要研究修订出更安全又可行的饮水砷卫生标准。
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