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HERO ID
6778002
Reference Type
Journal Article
Title
Impact of long-term exposure to local PM10 on children's blood pressure: A Chinese national cross-sectional study
Author(s)
Li, Q; Guo, Y; Song, JY; Song, Y; Ma, J; Wang, HJ
Year
2018
Is Peer Reviewed?
Yes
Journal
Air Quality, Atmosphere and Health
ISSN:
1873-9318
EISSN:
1873-9326
Volume
11
Issue
6
Page Numbers
705-713
Language
English
DOI
10.1007/s11869-018-0577-1
Web of Science Id
WOS:000438680300009
Abstract
The evidence of the effect of long-term exposure to particulate matter with aerodynamic diameter ae 10 mu m (PM10) on children"s blood pressure is insufficient. We collected the data of systolic and diastolic blood pressure (SBP and DBP) for 71,763 children aged 7 to 18 from 30 cities from 2010 Chinese National Survey on Students" Construction and Health, and the data of local annual average concentrations of PM10, SO2, NO2, annual average of relative humidity, and ambient temperature from China Meteorological Administration and Ministry of Environment Protection of China. We used the generalized additive model (GAM) to estimate the associations between PM10 exposure and children"s blood pressure. We found that there was a distinct geographic variation in the annual average concentrations of PM10, ranging from 40 mu g/m(3) in Haikou to 155 mu g/m(3) in Lanzhou. After adjusting for individual characteristics, social economic conditions, ambient temperature, relative humidity, NO2, and SO2, we found that the increase of PM10 was associated with increase of SBP and DBP in Chinese children. A 100-mu g/m(3) increase of PM10 was associated with 0.88 mmHg (95% CI 0.71, 1.05) higher SBP and 0.91 mmHg (95% CI 0.77, 1.06) higher DBP (p < 0.001). Consistent associations of SBP or DBP with PM10 were found in both girls and boys. We also found a larger estimated effect of PM10 on SBP and DBP in overweight children than that in normal ones. Public health policy for improving the air quality could be helpful to protect children"s cardiovascular health.
Keywords
PM10; Blood pressure; Children; Long-term exposure
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