Online vertical measurement of air pollutants: Development of a monitoring platform on a skyscraper and its application in Shanghai

Hao，Xue1; Zhang，Yan2,4; Yu，Guangyuan2; He，Baoshan2; Yang，Fan3; Zou，Zhong3; Zhang，Cangang2; Yang，Xin5; Ouyang，Bin6; Chang，Yunhua7

2022-07-01

10.1016/j.apr.2022.101477

Atmospheric Pollution Research   Impact Factor & Quartile

1309-1042

In this study, an online monitoring platform for vertical measurement of air pollutants was established atop a tall building (623 m), namely, the Shanghai Tower. Moreover, air pollutants such as CO, NO2, O3 and particles with an aerodynamic diameter of 2.5 ??m or smaller (PM2.5) were measured vertically at nine different heights. Based on continuous measurement data from June to November 2019, the seasonal and daily variation characteristics of the vertical profiles of these air pollutants in Shanghai were analyzed. The results indicated that CO, NO2 and PM2.5 generally showed a decreasing trend from the near ground to a height of 105 m, and the NO2 concentration continued to decrease to less than 20 ??g m??? 3 above 600 m. The PM2.5 concentration fluctuated with height. However, the O3 concentration increased with height in general and the increase was more significant at higher altitudes in summer, with an increase rate of 1.28 ??g m??? 3/10 m above 415 m. CO and PM2.5 tended to be impacted by regional transport in higher altitudes in autumn. Besides, a typical air pollution event in summer was analyzed to elucidate the detailed evolution process of the vertical concentration distribution. The obtained vertical observation data clearly revealed the impact of planetary boundary layer (PBL) structure that the sudden decline of planet boundary layer height (PBLH) by nearly 2/3 in an hour led to the explosive growth of O3 at all heights, especially at 105???255 m. Our study demonstrates that the established vertical online monitoring platform plays an important role in comprehensively capturing the vertical structure of urban air quality and explaining the air pollution evolution processes.

Vertical measurement Skyscraper Air pollutants Ozone Shanghai

SCI

English

Corresponding

Major Program of Shanghai Committee of Science and Technology, China[22ZR1407700] ; Natural Science Foundation of China[42077195] ; Program of Pudong Committee of Science and Technology, Shanghai[PKC2020-C004]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000824461800003

TURKISH NATL COMMITTEE AIR POLLUTION RES & CONTROL-TUNCAP

2-s2.0-85131937955

Web of Science

1.IRDR ICoE on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health,Institute of Atmospheric Science,Department of Atmospheric & Oceanic Sciences,Fudan University,Shanghai,200433,China
2.Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary,Department of Environmental Science & Engineering,Fudan University,Shanghai,200433,China
3.Pudong New District Environmental Monitoring Station,Shanghai,200135,China
4.Shanghai Institute of Eco-Chongming (SIEC),Shanghai,200062,China
5.School of Environmental Science & Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
6.Lancaster Environment Centre,Lancaster University,UK,LA1 4YQ,United Kingdom
7.Yale-NUIST Center on Atmospheric Environment,Nanjing University Information Science & Technology,Nanjing,210044,China

Hao，Xue,Zhang，Yan,Yu，Guangyuan,et al. Online vertical measurement of air pollutants: Development of a monitoring platform on a skyscraper and its application in Shanghai[J]. Atmospheric Pollution Research,2022,13(7).

Hao，Xue.,Zhang，Yan.,Yu，Guangyuan.,He，Baoshan.,Yang，Fan.,...&Chang，Yunhua.(2022).Online vertical measurement of air pollutants: Development of a monitoring platform on a skyscraper and its application in Shanghai.Atmospheric Pollution Research,13(7).

Hao，Xue,et al."Online vertical measurement of air pollutants: Development of a monitoring platform on a skyscraper and its application in Shanghai".Atmospheric Pollution Research 13.7(2022).