title: Ambient air quality and the effects of air pollutants on otolaryngology in Beijing.
abstract: To investigate temporal patterns, pollution concentrations and the health effects of air pollutants in Beijing we carried out time-series analyses on daily concentrations of ambient air pollutants and daily numbers of outpatient visits for otolaryngology over 2 years (2011-2012) to identify possible health effects of air pollutants. The results showed that PM10 was the major air pollutant in Beijing and that air quality was slightly better in 2012 than in 2011. Seasonal differences were apparent for SO2 and NO2. Both the background and urban areas of Beijing experienced particulate matter pollution in 2011. In addition to local air pollution, Beijing was also affected by pollutants transported from other regions, especially during heavy air pollution episodes. PM10, NO2, and SO2 concentrations showed positive associations with numbers of outpatient visits for otolaryngology during winter. NO2 and SO2 also had adverse ear, nose, and throat health effects outside of winter. The ear, nose, and throat health risks caused by air pollutants were higher during the winter than during the summer. NO2 had stronger influence on increased the likelihood of outpatient visits than SO2. The findings provide additional information about air quality and health effects of air pollution in Beijing.
authors.affiliation: China National Environmental Monitoring Centre, Beijing, 100012, China, zhangfy@cnemc.cn.
authors.forename: Fengying
authors.initials: F
authors.lastname: Zhang
authors.forename: Jin
authors.initials: J
authors.lastname: Xu
authors.forename: Ziying
authors.initials: Z
authors.lastname: Zhang
authors.forename: Haiying
authors.initials: H
authors.lastname: Meng
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Jinmei
authors.initials: J
authors.lastname: Lu
authors.forename: Wuyi
authors.initials: W
authors.lastname: Wang
authors.forename: Thomas
authors.initials: T
authors.lastname: Krafft
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D000397:Air Pollution / Q000032:analysis*; D000553:Ambulatory Care; D000068476:Beijing; D004784:Environmental Monitoring / Q000379:methods; D006801:Humans; D016013:Likelihood Functions; D010036:Otolaryngology; D052638:Particulate Matter / Q000032:analysis; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D012621:Seasons
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter