为了系统地了解臭氧(O_(3))的暴露与健康风险的研究现状及演化趋势,基于中国知网(CNKI)和Web of Science(WoS)核心合集数据库进行检索,利用R语言的Bibliometric功能对O_(3)暴露与健康相关中英文文献进行数据分析与挖掘,并结合绘图软件Or...为了系统地了解臭氧(O_(3))的暴露与健康风险的研究现状及演化趋势,基于中国知网(CNKI)和Web of Science(WoS)核心合集数据库进行检索,利用R语言的Bibliometric功能对O_(3)暴露与健康相关中英文文献进行数据分析与挖掘,并结合绘图软件Origin和文献数据可视化CiteSpace软件对结果进行可视化分析,揭示该领域的研究发展路径.结果表明:O_(3)暴露与健康研究在2000~2025年间稳步增长,中英文文献各582和915篇,且经历了萌芽期(2000~2016年)和激增期(2017年至今)两个阶段.英文文献中各国家、机构和作者之间的合作比较紧密.英文研究趋势经历了技术积累与初步关注、暴露评估与健康影响的初步探索、长期暴露与健康研究的深入、健康负担评估与政策引导4个阶段.中文关键词主要集中在健康效应与影响、污染源与形成过程以及时空分布与变化3个方面,且经历了早期研究与暴露评价(2009~2015年)、污染源识别(2016~2020年)以及特定群体的风险与高科技手段的引入(2021~2025年)3个阶段的演变.展开更多
本研究以烟雾箱为研究对象,基于中国知网(CNKI)数据库和Web of Science(WOS)核心数据库,应用CiteSpace和VOSviewer文献计量学统计分析功能梳理了2000-2023年国内外关于大气光化学反应的研究进展和热点。重点探讨了文献产出趋势、发文机...本研究以烟雾箱为研究对象,基于中国知网(CNKI)数据库和Web of Science(WOS)核心数据库,应用CiteSpace和VOSviewer文献计量学统计分析功能梳理了2000-2023年国内外关于大气光化学反应的研究进展和热点。重点探讨了文献产出趋势、发文机构、发文作者和发文国家之间的相互合作关系、关键词共现、关键词聚类以及大气光化学反应研究领域的发展过程。结果表明,文献发文量整体呈现波浪状态;发表机构以中国科学院(含附属机构)为主,形成了以张为俊、徐永福、Wallington T J、Hurley M D等为主的研究团队;发文国家主要集中在美国与瑞士,但中国未来有一定发展潜力;关键词共现与聚类分析显示大气光化学反应领域的研究内容侧重于烟雾箱、气溶胶、臭氧化、污染特征等方面;关键词突现分析结果显示以烟雾箱为代表的大气光化学反应研究热点逐渐由反应机理向污染源解析、多因素影响与外场监测延伸。综合分析表明,烟雾箱的研究经历了从基础机理探索到复杂环境模拟的演进,现已成为在复杂体系中揭示大气光化学反应机制的核心工具。展开更多
Correction to:Journal of Forestry Research(2025)36:124 https://doi.org/10.1007/s11676-025-01918-8 In this article the author’s name Yasutomo Hoshika was incorrectly written as Yasutoma Hoshika.The original article ha...Correction to:Journal of Forestry Research(2025)36:124 https://doi.org/10.1007/s11676-025-01918-8 In this article the author’s name Yasutomo Hoshika was incorrectly written as Yasutoma Hoshika.The original article has been corrected.展开更多
To curb the worsening tropospheric ozone(O_(3))pollution problem in China,a rapid and accurate identification of O_(3)-precursor sensitivity(OPS)is a crucial prerequisite for formulating effective contingency O_(3) po...To curb the worsening tropospheric ozone(O_(3))pollution problem in China,a rapid and accurate identification of O_(3)-precursor sensitivity(OPS)is a crucial prerequisite for formulating effective contingency O_(3) pollution control strategies.However,currently widely-used methods,such as statistical models and numerical models,exhibit inherent limitations in identifying OPS in a timely and accurate manner.In this study,we developed a novel approach to identify OPS based on eXtreme Gradient Boosting model,Shapley additive explanation(SHAP)al-gorithm,and volatile organic compound(VOC)photochemical decay adjustment,using the meteorology and speciated pollutant monitoring data as the input.By comparing the difference in SHAP values between base sce-nario and precursor reduction scenario for nitrogen oxides(NO_(x))and VOCs,OPS was divided into NO_(x)-limited,VOCs-limited and transition regime.Using the long-lasting O_(3) pollution episode in the autumn of 2022 at the Guangdong-Hong Kong-Macao Greater Bay Area(GBA)as an example,we demonstrated large spatiotemporal heterogeneities of OPS over the GBA,which were generally shifted from NO_(x)-limited to VOCs-limited from September to October and more inclined to be VOCs-limited at the central and NO_(x)-limited in the peripheral areas.This study developed an innovative OPS identification method by comparing the difference in SHAP value before and after precursor emission reduction.Our method enables the accurate identification of OPS in the time scale of seconds,thereby providing a state-of-the-art tool for the rapid guidance of spatial-specific O_(3) control strategies.展开更多
Ambient ozone(O_(3))is generated through the reactions of nitrogen oxides and volatile organic compounds(VOCs)in sunlight,and the primary sources of RO_(x)radicals play a very important role in O_(3)photochemistry.How...Ambient ozone(O_(3))is generated through the reactions of nitrogen oxides and volatile organic compounds(VOCs)in sunlight,and the primary sources of RO_(x)radicals play a very important role in O_(3)photochemistry.However,as major precursors of RO_(x)radicals,the systematical evaluation of ClNO_(2),HCHO,and HONO impacts on O_(3)photochemistry remains limited.Here,we utilized the observations of ClNO_(2),HCHO,and HONO conducted in a coastal city of Southeast China during a photochemical O_(3)pollution episode,combined with model simulations to elucidate their impacts on RO_(x)radicals and atmospheric oxidation capacity(AOC),as well as O_(3)formation.Decreased concentrations of ClNO_(2)and HONO were observed after sunrise,while HCHO concentrations peaked in the daytime.HCHO photolysis contributed the largest(∼25%)to RO_(x)radical production around noon,while HONO photolysis(∼47%)dominated RO_(x)radical production in the morning and late afternoon,and VOCs consumed by Cl radical released via ClNO_(2)photolysis was more important(∼10%)in the early morning,similar to their effects on the AOC levels.The results of model simulations indicated that HCHO photolysis greatly enhanced the photochemical formation of O_(3),followed by HONO and ClNO_(2)photolysis.Except for reducing VOCs due to a VOC-limited regime,the impacts of HCHO photolysis as primary RO_(x)sources should be valued to inhibit the intensification of O_(3)pollution.Our study stressed the importance of primary RO_(x)sources for O_(3)photochemistry in coastal regions,provided new insights into elucidating the self-purifying effect of the atmospheric environment.展开更多
文摘为了系统地了解臭氧(O_(3))的暴露与健康风险的研究现状及演化趋势,基于中国知网(CNKI)和Web of Science(WoS)核心合集数据库进行检索,利用R语言的Bibliometric功能对O_(3)暴露与健康相关中英文文献进行数据分析与挖掘,并结合绘图软件Origin和文献数据可视化CiteSpace软件对结果进行可视化分析,揭示该领域的研究发展路径.结果表明:O_(3)暴露与健康研究在2000~2025年间稳步增长,中英文文献各582和915篇,且经历了萌芽期(2000~2016年)和激增期(2017年至今)两个阶段.英文文献中各国家、机构和作者之间的合作比较紧密.英文研究趋势经历了技术积累与初步关注、暴露评估与健康影响的初步探索、长期暴露与健康研究的深入、健康负担评估与政策引导4个阶段.中文关键词主要集中在健康效应与影响、污染源与形成过程以及时空分布与变化3个方面,且经历了早期研究与暴露评价(2009~2015年)、污染源识别(2016~2020年)以及特定群体的风险与高科技手段的引入(2021~2025年)3个阶段的演变.
文摘本研究以烟雾箱为研究对象,基于中国知网(CNKI)数据库和Web of Science(WOS)核心数据库,应用CiteSpace和VOSviewer文献计量学统计分析功能梳理了2000-2023年国内外关于大气光化学反应的研究进展和热点。重点探讨了文献产出趋势、发文机构、发文作者和发文国家之间的相互合作关系、关键词共现、关键词聚类以及大气光化学反应研究领域的发展过程。结果表明,文献发文量整体呈现波浪状态;发表机构以中国科学院(含附属机构)为主,形成了以张为俊、徐永福、Wallington T J、Hurley M D等为主的研究团队;发文国家主要集中在美国与瑞士,但中国未来有一定发展潜力;关键词共现与聚类分析显示大气光化学反应领域的研究内容侧重于烟雾箱、气溶胶、臭氧化、污染特征等方面;关键词突现分析结果显示以烟雾箱为代表的大气光化学反应研究热点逐渐由反应机理向污染源解析、多因素影响与外场监测延伸。综合分析表明,烟雾箱的研究经历了从基础机理探索到复杂环境模拟的演进,现已成为在复杂体系中揭示大气光化学反应机制的核心工具。
文摘Correction to:Journal of Forestry Research(2025)36:124 https://doi.org/10.1007/s11676-025-01918-8 In this article the author’s name Yasutomo Hoshika was incorrectly written as Yasutoma Hoshika.The original article has been corrected.
基金supported by the Key-Area Research and Development Program of Guangdong Province(No.2020B1111360003)the National Natural Science Foundation of China(Nos.42465008 and 42105164)+2 种基金Yunnan Science and Technology Department Project(No.202501AT070239)Yunnan Science and Technology Department Youth Project(No.202401AU070202)Xianyang Rapid Response Decision Support Project for Ozone(No.YZ2024-ZB019).
文摘To curb the worsening tropospheric ozone(O_(3))pollution problem in China,a rapid and accurate identification of O_(3)-precursor sensitivity(OPS)is a crucial prerequisite for formulating effective contingency O_(3) pollution control strategies.However,currently widely-used methods,such as statistical models and numerical models,exhibit inherent limitations in identifying OPS in a timely and accurate manner.In this study,we developed a novel approach to identify OPS based on eXtreme Gradient Boosting model,Shapley additive explanation(SHAP)al-gorithm,and volatile organic compound(VOC)photochemical decay adjustment,using the meteorology and speciated pollutant monitoring data as the input.By comparing the difference in SHAP values between base sce-nario and precursor reduction scenario for nitrogen oxides(NO_(x))and VOCs,OPS was divided into NO_(x)-limited,VOCs-limited and transition regime.Using the long-lasting O_(3) pollution episode in the autumn of 2022 at the Guangdong-Hong Kong-Macao Greater Bay Area(GBA)as an example,we demonstrated large spatiotemporal heterogeneities of OPS over the GBA,which were generally shifted from NO_(x)-limited to VOCs-limited from September to October and more inclined to be VOCs-limited at the central and NO_(x)-limited in the peripheral areas.This study developed an innovative OPS identification method by comparing the difference in SHAP value before and after precursor emission reduction.Our method enables the accurate identification of OPS in the time scale of seconds,thereby providing a state-of-the-art tool for the rapid guidance of spatial-specific O_(3) control strategies.
基金supported by the National Natural Science Foun-dation of China(No.U22A20578)the guiding project of seizing the commanding heights of“self-purifying city”(No.IUE-CERAE-202402)+3 种基金the Science and Technology Department of Fujian Province(No.2022L3025)the National Key Research and Development Program(No.2022YFC3700304)the STS Plan Supporting Project of the Chinese Academy of Sciences in Fujian Province(No.2023T3013)Xiamen Atmospheric Environment Observation and Research Station of Fujian Province.
文摘Ambient ozone(O_(3))is generated through the reactions of nitrogen oxides and volatile organic compounds(VOCs)in sunlight,and the primary sources of RO_(x)radicals play a very important role in O_(3)photochemistry.However,as major precursors of RO_(x)radicals,the systematical evaluation of ClNO_(2),HCHO,and HONO impacts on O_(3)photochemistry remains limited.Here,we utilized the observations of ClNO_(2),HCHO,and HONO conducted in a coastal city of Southeast China during a photochemical O_(3)pollution episode,combined with model simulations to elucidate their impacts on RO_(x)radicals and atmospheric oxidation capacity(AOC),as well as O_(3)formation.Decreased concentrations of ClNO_(2)and HONO were observed after sunrise,while HCHO concentrations peaked in the daytime.HCHO photolysis contributed the largest(∼25%)to RO_(x)radical production around noon,while HONO photolysis(∼47%)dominated RO_(x)radical production in the morning and late afternoon,and VOCs consumed by Cl radical released via ClNO_(2)photolysis was more important(∼10%)in the early morning,similar to their effects on the AOC levels.The results of model simulations indicated that HCHO photolysis greatly enhanced the photochemical formation of O_(3),followed by HONO and ClNO_(2)photolysis.Except for reducing VOCs due to a VOC-limited regime,the impacts of HCHO photolysis as primary RO_(x)sources should be valued to inhibit the intensification of O_(3)pollution.Our study stressed the importance of primary RO_(x)sources for O_(3)photochemistry in coastal regions,provided new insights into elucidating the self-purifying effect of the atmospheric environment.
