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10.1029/2020GL088533 http://scihub22266oqcxt.onion/10.1029/2020GL088533 C7300478!7300478!32836517     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=32836517&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215 Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Geophys+Res+Lett 2020 ; 47 (12): ä Nephropedia Template TP {{tp|p=32836517|t=2020. Puzzling Haze Events in China During the Coronavirus (COVID?19) Shutdown |pdf=|usr=}}{{32836517}} gab.com Text Puzzling Haze Events in China During the Coronavirus (COVID 19) Shutdown JO: Geophys Res Lett http://www.kidney.de/pget.php?&tw=1&pmid=32836517 #FOAvip It is a puzzle as to why more severe haze formed during the New Year Holiday in 2020 (NYH?20), when China was in an unprecedented state of shutdown to contain the coronavirus (COVID?19) outbreak, than in 2019 (NYH?19). We performed a comprehensive measurement and modeling analysis of the aerosol chemistry and physics at multiple sites in China (mainly in Shanghai) before, during, and after NYH?19 and NYH?20. Much higher secondary aerosol fraction in PM2.5 were observed during NYH?20 (73%) than during NYH?19 (59%). During NYH?20, PM2.5 levels correlated significantly with the oxidation ratio of nitrogen (r2 = 0.77, p < 0.01), and aged particles from northern China were found to impede atmospheric new particle formation and growth in Shanghai. A markedly enhanced efficiency of nitrate aerosol formation was observed along the transport pathways during NYH?20, despite the overall low atmospheric NO2 levels. Twit Text FOAVip Puzzling Haze Events in China During the Coronavirus (COVID 19) Shutdown ????Geophys Res Lett http://www.kidney.de/pget.php?&tw=1&pmid=32836517 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=32836517 #FOAvip English Wikipedia <ref>{{Cite pmid|32836517}}</ref> Puzzling Haze Events in China During the Coronavirus (COVID?19) Shutdown #MMPMID32836517 Chang Y; Huang R; Ge X; Huang X; Hu J; Duan Y; Zou Z; Liu X; Lehmann MF Geophys Res Lett 2020[Jun]; 47 (12): ä PMID32836517show ga It is a puzzle as to why more severe haze formed during the New Year Holiday in 2020 (NYH?20), when China was in an unprecedented state of shutdown to contain the coronavirus (COVID?19) outbreak, than in 2019 (NYH?19). We performed a comprehensive measurement and modeling analysis of the aerosol chemistry and physics at multiple sites in China (mainly in Shanghai) before, during, and after NYH?19 and NYH?20. Much higher secondary aerosol fraction in PM2.5 were observed during NYH?20 (73%) than during NYH?19 (59%). During NYH?20, PM2.5 levels correlated significantly with the oxidation ratio of nitrogen (r2 = 0.77, p < 0.01), and aged particles from northern China were found to impede atmospheric new particle formation and growth in Shanghai. A markedly enhanced efficiency of nitrate aerosol formation was observed along the transport pathways during NYH?20, despite the overall low atmospheric NO2 levels. äPuzzling Haze Events in China During the Coronavirus (COVID?19) Shutdo(epmc).pdf DeepDyve Pubget Overpricing