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10.1016/j.scitotenv.2020.141025 http://scihub22266oqcxt.onion/10.1016/j.scitotenv.2020.141025 32738691!7371585!32738691     free     free     free Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Sci+Total+Environ 2020 ; 745 (ä): 141025 Nephropedia Template TP {{tp|p=32738691|t=2020. Influence of Chinese New Year overlapping COVID-19 lockdown on HONO sources in Shijiazhuang |pdf=|usr=}}{{32738691}} gab.com Text Influence of Chinese New Year overlapping COVID-19 lockdown on HONO sources in Shijiazhuang JO: Sci Total Environ http://www.kidney.de/pget.php?&tw=1&pmid=32738691 #FOAvip Nitrous acid (HONO) is an important precursor of hydroxyl radical (OH) in the atmosphere. It is also toxic to human health. In this work, HONO concentrations were measured in Shijiazhuang using a Monitor for AeRosols and Gases in ambient Air (MARGA) from December 15, 2019 to March 15, 2020, which covered the heavy air pollution season, the Chinese New Year (CNY) vocation and the Corona Virus Disease-19 (COVID-19) lockdown period. During & after CNY overlapping COVID-19 lockdown, the air quality was significantly improved because of both the emission reduction and the increase in diffusion ability of air masses. The mean HONO concentration was 2.43 +/- 1.08 ppbv before CNY, while it decreased to 1.53 +/- 1.16 ppbv during CNY and 0.97 +/- 0.76 ppbv after CNY. The lockdown during & after CNY reduced ~31% of ambient HONO along with ~62% of NO and ~36% of NO(2) compared with those before CNY after the improvement of diffusion ability had been taken into consideration. Heterogeneous reaction of NO(2) on ground surface dominated the nocturnal HONO sources, followed by heterogeneous reaction on aerosol surface, vehicle emission, reaction between NO and OH and emission from soil on pollution days throughout the observation. Except for elevated soil emission, other nighttime HONO sources and sinks decreased significantly during & after CNY. The relative importance of heterogeneous reaction of NO(2) on surfaces further increased because of both the decrease in vehicle emission and the increase in the heterogeneous conversion kinetics from NO(2) to HONO during & after CNY. Twit Text FOAVip Influence of Chinese New Year overlapping COVID-19 lockdown on HONO sources in Shijiazhuang ????Sci Total Environ http://www.kidney.de/pget.php?&tw=1&pmid=32738691 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=32738691 #FOAvip English Wikipedia <ref>{{Cite pmid|32738691}}</ref> Influence of Chinese New Year overlapping COVID-19 lockdown on HONO sources in Shijiazhuang #MMPMID32738691 Liu Y; Ni S; Jiang T; Xing S; Zhang Y; Bao X; Feng Z; Fan X; Zhang L; Feng H Sci Total Environ 2020[Nov]; 745 (ä): 141025 PMID32738691show ga Nitrous acid (HONO) is an important precursor of hydroxyl radical (OH) in the atmosphere. It is also toxic to human health. In this work, HONO concentrations were measured in Shijiazhuang using a Monitor for AeRosols and Gases in ambient Air (MARGA) from December 15, 2019 to March 15, 2020, which covered the heavy air pollution season, the Chinese New Year (CNY) vocation and the Corona Virus Disease-19 (COVID-19) lockdown period. During & after CNY overlapping COVID-19 lockdown, the air quality was significantly improved because of both the emission reduction and the increase in diffusion ability of air masses. The mean HONO concentration was 2.43 +/- 1.08 ppbv before CNY, while it decreased to 1.53 +/- 1.16 ppbv during CNY and 0.97 +/- 0.76 ppbv after CNY. The lockdown during & after CNY reduced ~31% of ambient HONO along with ~62% of NO and ~36% of NO(2) compared with those before CNY after the improvement of diffusion ability had been taken into consideration. Heterogeneous reaction of NO(2) on ground surface dominated the nocturnal HONO sources, followed by heterogeneous reaction on aerosol surface, vehicle emission, reaction between NO and OH and emission from soil on pollution days throughout the observation. Except for elevated soil emission, other nighttime HONO sources and sinks decreased significantly during & after CNY. The relative importance of heterogeneous reaction of NO(2) on surfaces further increased because of both the decrease in vehicle emission and the increase in the heterogeneous conversion kinetics from NO(2) to HONO during & after CNY. |*Air Pollution/analysis[MESH] |*Coronavirus Infections[MESH] |*Nitrous Acid[MESH] |*Pandemics[MESH] |*Pneumonia, Viral[MESH] |Anniversaries and Special Events[MESH] |Atmosphere[MESH] |Betacoronavirus[MESH] |COVID-19[MESH] |Hydroxyl Radical[MESH]Influence of Chinese New Year overlapping COVID-19 lockdown on HONO so(epmc).pdf DeepDyve Pubget Overpricing