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Nationwide ground-level ozone measurements in China suggest serious risks to forests
Li, Pin1,2; De Marco, Alessandra3,4; Feng, Zhaozhong1,2; Anav, Alessandro3,4; Zhou, Daojing5; Paoletti, Elena1,4
2018-06-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume237Pages:803-813
Corresponding AuthorFeng, Zhaozhong(fzz@rcees.ac.cn)
AbstractWe processed hourly ozone (O-3) concentrations collected in 2015 and in 2016 by a network of 1497 stations across China, with the main aim of assessing the risk that present ambient O-3 exposure is posing to Chinese forests. Our results indicate that the values of the metrics AOT40 (the accumulated hourly O-3 concentrations above 40 ppb during daylight hours) recommended as European Union standard, and W126 (the sum of weighted hourly concentrations from 8:00 to 20:00) recommended as USA standard for forest protection, exceeded the critical levels (5 ppm h across 6 months for AOT40 and 7-21 ppm h over 3 months for W126) on average by 5.1 and 1.2 times, respectively. N100 showed on average 65 annual exceedances of 100 ppb as hourly value. The 12-h and 24-h averages showed a small difference, suggesting high concentrations also at night. Risk was higher for the northern temperate climate than for the southern tropical and sub-tropical climates, and overall for the northern regions than for the southern regions. Higher risk occurred in the non-urban areas than in the urban areas in northern, southwest and north-west China, whereas risk was higher at urban areas in eastern and southern China. The overall results of this first nationwide assessment suggest a significant risk for forests over the entire China and warrant for urgent measures for controlling O-3 precursor emissions and establishing standards of protection. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordSurface ozone Ozone-exposure metrics Risk assessment Forests China
DOI10.1016/j.envpol.2017.11.002
WOS KeywordSURFACE OZONE ; TROPOSPHERIC OZONE ; CLIMATE-CHANGE ; RESPONSE RELATIONSHIPS ; EUROPEAN FORESTS ; LEAF MORPHOLOGY ; ELEVATED OZONE ; EASTERN CHINA ; UNITED-STATES ; POPLAR CLONES
Indexed BySCI
Language英语
Funding ProjectKey Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC019] ; Hundred Talents Program, Chinese Academy of Sciences ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) for Senior Scientists[2016VBA057] ; National Natural Science Foundation of China[31500396] ; CNR-CAS
Funding OrganizationKey Research Program of Frontier Sciences, CAS ; Hundred Talents Program, Chinese Academy of Sciences ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) for Senior Scientists ; National Natural Science Foundation of China ; CNR-CAS
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000431158900082
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54985
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFeng, Zhaozhong
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Shuangqing Rd 18, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.ENEA Casaccia, Via Anguillarese 31, Rome, Italy
4.CNR, Via Madonna Piano 10, I-50019 Sesto Fiorentino, Italy
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Li, Pin,De Marco, Alessandra,Feng, Zhaozhong,et al. Nationwide ground-level ozone measurements in China suggest serious risks to forests[J]. ENVIRONMENTAL POLLUTION,2018,237:803-813.
APA Li, Pin,De Marco, Alessandra,Feng, Zhaozhong,Anav, Alessandro,Zhou, Daojing,&Paoletti, Elena.(2018).Nationwide ground-level ozone measurements in China suggest serious risks to forests.ENVIRONMENTAL POLLUTION,237,803-813.
MLA Li, Pin,et al."Nationwide ground-level ozone measurements in China suggest serious risks to forests".ENVIRONMENTAL POLLUTION 237(2018):803-813.
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