[Investigation of air pollution poisoning and air quality in factories in Zhu-hai].
D000397:Air Pollution / Q000009:adverse effects / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D002681:China; D006801:Humans; D007221:Industry; D011041:Poisoning / Q000209:etiology / Q000517:prevention & control*; D017132:Workplace