Long-term variation and evaluation of air quality across Hong Kong

被引：10
|
作者：
Tan, Yan [1 ]
Han, Shuwen [2 ]
Chen, Yi [3 ]
Wu, Zhongbiao [4 ]
Lee, Shun-cheng [2 ]
机构：
[1] Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266520, Peoples R China
[2] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong 999077, Peoples R China
[3] Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong 999077, Peoples R China
[4] Zhejiang Univ, Coll Environm & Resource Sci, Key Lab Environm Remediat & Ecol Hlth, Minist Educ, Hangzhou 310058, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2023年 / 127卷
关键词：
Long-term variation; Roadside; Hong Kong air quality; Air Quality Objectives (AQO); Air quality health index (AQH); VOLATILE ORGANIC-COMPOUNDS; OZONE POLLUTION; ROADSIDE ENVIRONMENT; HEALTH INDEX; CHINA; PRECURSORS; SENSITIVITY; LOCATIONS; EMISSIONS; IMPACT;
D O I：
10.1016/j.jes.2022.05.009
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Study of Air Quality Objectives (AQOs) and long-term changesofairpollutionplaysadeci-siveroleinformulatingandrefiningpollutioncontrolstrategies.Inthisstudy,10-yearvaria-tionsofsixmajorairpollutantswereanalyzedatsevenmonitoringsitesinHongKong.ThecontinuousdecreaseofannualaveragedconcentrationsofNO2,SO2,CO,PM2.5andPM10andnumbersofdayswithseverepollutionconditionsvalidatedtheefficiencyoftheseriesofairpollutioncontrolschemesimplementedbytheHongKonggovernment.However,thereisstillabiggaptomeettheultimatetargetsdescribedbytheWorldHealthOrganization.Be-sides,theconcentrationofO3atroadsideandurbanstationsincreasedby135%+/- 25%and37%+/- 18%from2011to2020,respectively,meanwhilethehighest8hraveragedO3con-centrationwasobservedas294 mu g/m3atbackgroundstationin2020,whichpointedouttheincreasingozonepollutioninHongKong.Therewasagreatdecreaseintheannualtimesofairqualityhealthindex(AQHI)layingin"high","veryhigh" and"serious" categoriesfrom2011to2020withthedecreaserateof89.70%,91.30%and89.74%atroadsidestations,and79.03%,95.98%and72.73%aturbanstations,respectively.Nevertheless,thenumberofdayscategorizedas"high" oraboveatroadsidestationwastwicemorethanthatintheurbanstationduringthepasttenyears.Thus,morepoliciesandattentionsshouldbegiventotheroadsideairqualityanditsadversehealtheffecttopedestriansonstreet.(c) 2022TheResearchCenterforEco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V
引用
收藏
页码：284 / 294
页数：11
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