Next Article in Journal
Reconsidering the Relationship between Air Pollution and Deprivation
Previous Article in Journal
Recurrent Renal Colic in a Patient with Munchausen Syndrome
Open AccessArticle

Temporal and Spatial Variation in, and Population Exposure to, Summertime Ground-Level Ozone in Beijing

by Hui Zhao 1, Youfei Zheng 1,2,*, Ting Li 2, Li Wei 2 and Qing Guan 2
1
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China
2
Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(4), 628; https://doi.org/10.3390/ijerph15040628
Received: 7 February 2018 / Revised: 15 March 2018 / Accepted: 26 March 2018 / Published: 29 March 2018
(This article belongs to the Section Environmental Health)
Ground-level ozone pollution in Beijing has been causing concern among the public due to the risks posed to human health. This study analyzed the temporal and spatial distribution of, and investigated population exposure to, ground-level ozone. We analyzed hourly ground-level ozone data from 35 ambient air quality monitoring sites, including urban, suburban, background, and traffic monitoring sites, during the summer in Beijing from 2014 to 2017. The results showed that the four-year mean ozone concentrations for urban, suburban, background, and traffic monitoring sites were 95.1, 99.8, 95.9, and 74.2 μg/m3, respectively. A total of 44, 43, 45, and 43 days exceeded the Chinese National Ambient Air Quality Standards (NAAQS) threshold for ground-level ozone in 2014, 2015, 2016, and 2017, respectively. The mean ozone concentration was higher in suburban sites than in urban sites, and the traffic monitoring sites had the lowest concentration. The diurnal variation in ground-level ozone concentration at the four types of monitoring sites displayed a single-peak curve. The peak and valley values occurred at 3:00–4:00 p.m. and 7:00 a.m., respectively. Spatially, ground-level ozone concentrations decreased in gradient from the north to the south. Population exposure levels were calculated based on ground-level ozone concentrations and population data. Approximately 50.38%, 44.85%, and 48.49% of the total population of Beijing were exposed to ground-level ozone concentrations exceeding the Chinese NAAQS threshold in 2014, 2015, and 2016, respectively. View Full-Text
Keywords: ground-level ozone; atmospheric oxidation; exposure; China ground-level ozone; atmospheric oxidation; exposure; China
Show Figures

Figure 1

MDPI and ACS Style

Zhao, H.; Zheng, Y.; Li, T.; Wei, L.; Guan, Q. Temporal and Spatial Variation in, and Population Exposure to, Summertime Ground-Level Ozone in Beijing. Int. J. Environ. Res. Public Health 2018, 15, 628.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop