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| 1 | 大气颗粒物物理化学属性致病效应与损伤机制的研究进展显示文摘近些年,我国大气颗粒物所带来的健康问题越发突出,由此产生的环境疾病日益引起人们的广泛关注。大量的流行病学和毒理学研究发现,大气颗粒物能引起呼吸系统、心血管系统、神经系统、免疫系统等的损伤,造成新生儿出生缺陷,增加罹患癌症的风险,且与人群发病率和死亡率上升有关。但是由于大气颗粒物物化属性比较复杂,一种或几种损伤机制并不能完全解释其与致病效应的关系,因此具体的损伤机制目前还没有统一的说法,大气颗粒物物理化学属性与致病效应的关系仍在探索当中。本文从大气颗粒物的粒径、浓度、比表面积、来源、成分等基本属性入手,剖析其基本特点和可能影响健康的原因,探讨大气颗粒物通过氧化损伤途径诱导致病效应,并结合当前大气颗粒物健康影响研究现状提出在未来研究中应注重的相关内容。 | 付铠 周启星 胡献刚 | 2016 | 生态毒理学报2016，11，1： | 6 |
| 2 | 空气中超细颗粒物检测方法的研究进展显示文摘颗粒物的健康损害效应已得到广泛的关注。尤其近年来,国内外学者们针对PM2.5等大颗粒开展了大量的人群流行病学和毒理学研究,健康损害效应的因果关系得到基本确认。然而比PM2.5粒径更小但数量更多的超细颗粒物(UFPs),其暴露特征及对健康影响的贡献值尚不清楚,缺乏统一的检测方法及策略是影响其健康评估的关键因素。因此,本文根据国内外文献,综述了目前超细颗粒物的检测方法、仪器及策略,总结了超细颗粒物评价方法的影响因素及其存在的不足,为超细颗粒物检测方法的进一步研究提供建议和帮助。 | 张元宝 许志珍 王煜倩 朱鹏 张斌 唐仕川 赵鹏 | 2017 | 生态毒理学报2017，12，5： | 4 |
| 3 | Origin of high particle number concentrations reaching the St. Louis, Midwest Supersite显示文摘Ultrafine particles are associated with adverse health effects. Total Particle Number Concentration(TNC) of fine particles were measured during 2002 at the St. Louis — Midwest supersite. The time series showed overall low level with frequent large peaks. The time series was analyzed alongside criteria pollutant measurements and meteorological observations. Multiple regression analysis was used to identify further contributing factors and to determine the association of different pollutants with TNC levels. This showed the strong contribution of sulfur dioxide(SO2) and nitrogen oxides(NO x) to high TNC levels. The analysis also suggested that increased dispersion resulting from faster winds and higher mixing heights led to higher TNC levels. Overall, the results show that there were intense particle nucleation events in a SO2 rich plume reaching the site which contributed around 29% of TNC. A further 40% was associated with primary emissions from mobile sources. By separating the remaining TNC by time of day and clear sky conditions,we suggest that most likely 8% of TNC are due to regional nucleation events and 23% are associated with the general urban background. | Benjamin de Foy James J.Schauer | 2015 | Journal of Environmental Sciences2015，27，8： | 2 |
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