文章基本信息

标题：Surrounding Greenness and Exposure to Air Pollution During Pregnancy: An Analysis of Personal Monitoring Data
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作者：Payam Dadvand ; Audrey de Nazelle ; Margarita Triguero-Mas 等
期刊名称：Environmental Health Perspectives
印刷版ISSN：0091-6765
电子版ISSN：1552-9924
出版年度：2012
卷号：120
期号：9
页码：1286-1290
DOI：10.1289/ehp.1104609
出版社：OCR Subscription Services Inc
摘要：Ba c k g r o u n d: Green spaces are reported to improve health status, including beneficial effects on pregnancy outcomes. Despite the suggestions of air pollution–related health benefits of green spaces, there is no available evidence on the impact of greenness on personal exposure to air pollution.oB j e c t i v e s: We investigated the association between surrounding greenness and personal exposure to air pollution among pregnant women and to explore the potential mechanisms, if any, behind this association.Me t h o d s: In total, 65 rounds of sampling were carried out for 54 pregnant women who resided in Barcelona during 2008–2009. Each round consisted of a 2-day measurement of particulate matter with aerodynamic diameter ≤ 2.5 μm (PM2.5) and a 1-week measurement of nitric oxides collected simultaneously at both the personal and microenvironmental levels. The study participants were also asked to fill out a time–microenvironment–activity diary during the sampling period. We used satellite retrievals to determine the surrounding greenness as the average of Normalized Difference Vegetation Index (NDVI) in a buffer of 100 m around each maternal residential address. We esti-mated the impact of surrounding greenness on personal exposure levels, home-outdoor and home-indoor pollutant levels, and maternal time-activity.re s u l t s: Higher residential surrounding greenness was associated with lower personal, home-indoor, and home-outdoor PM2.5levels, and more time spent at home-outdoor.co n c l u s i o n s: We found lower levels of personal exposure to air pollution among pregnant women residing in greener areas. This finding may be partly explained by lower home-indoor pollutant levels and more time spent in less polluted home-outdoor environment by pregnant women in greener areas
关键词：air pollution; greenness; green space; NDVI; personal exposure; personal monitor-;ing; pregnancy; reproductive health; sustainability; urban green area