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中国水污染综合治理的生态学思考

open access: yes, 2007
<正>中国水污染现状当前的中国,水污染和水体富营养化已成为严重的环境问题。经济合作组织(OECD)2007年7月17日的报告称,中国主要城市水质近一半不完全符合饮用水源水质标准。污染源当中,最主要的是粪便排污 ...
蔡庆华
core  

[Association Study of Parity With Adverse Pregnancy Outcomes]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Yao J, Guo X, Dong X.
europepmc   +1 more source

[Research advances in non-pharmacological interventions in pediatric asthma]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Wang WR, Peng W, Zheng XR.
europepmc   +1 more source

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