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10.1016/j.envres.2021.111788 http://scihub22266oqcxt.onion/10.1016/j.envres.2021.111788 34339692!8654612!34339692     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Environ+Res 2022 ; 203 (ä): 111788 Nephropedia Template TP {{tp|p=34339692|t=2022. Changes in the concentration and composition of urban aerosols during the COVID-19 lockdown |pdf=|usr=}}{{34339692}} gab.com Text Changes in the concentration and composition of urban aerosols during the COVID-19 lockdown JO: Environ Res http://www.kidney.de/pget.php?&tw=1&pmid=34339692 #FOAvip This work investigates the impact of COVID-19 restrictive measures on the mass concentrations of PM(1) and PM(10), and their chemical components (water-soluble ions, organic and elemental carbon, and major and trace metals) at an urban site in the western Mediterranean. The evolution of gaseous pollutants (NO(x), O(3) and some volatile organic compounds) was also analyzed. The concentrations measured during the lockdown in 2020 were compared to those obtained during the same period over the preceding five years. The average decrease in the levels of NO(x) and traffic-related volatile organic compounds was higher than 50 %, while O(3) concentrations did not exhibit significant variations during the study period. Our results show that temporal variations in PM(1) and PM(10) concentrations were strongly affected by the frequency of Saharan dust events. When these episodes were excluded from the analysis period, a 35 % decrease in PM(1) and PM(10) levels was observed. Traffic restrictions during the lockdown led to important reductions in the concentrations of elemental carbon and metals derived from road dust (e.g. Ca and Fe) and break wear (e.g. Cu). Regarding secondary inorganic aerosols, nitrate showed the largest reductions as a consequence of the drop in local emissions of NO(x). Twit Text FOAVip Changes in the concentration and composition of urban aerosols during the COVID-19 lockdown ????Environ Res http://www.kidney.de/pget.php?&tw=1&pmid=34339692 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=34339692 #FOAvip English Wikipedia <ref>{{Cite pmid|34339692}}</ref> Changes in the concentration and composition of urban aerosols during the COVID-19 lockdown #MMPMID34339692 Clemente A; Yubero E; Nicolas JF; Caballero S; Crespo J; Galindo N Environ Res 2022[Jan]; 203 (ä): 111788 PMID34339692show ga This work investigates the impact of COVID-19 restrictive measures on the mass concentrations of PM(1) and PM(10), and their chemical components (water-soluble ions, organic and elemental carbon, and major and trace metals) at an urban site in the western Mediterranean. The evolution of gaseous pollutants (NO(x), O(3) and some volatile organic compounds) was also analyzed. The concentrations measured during the lockdown in 2020 were compared to those obtained during the same period over the preceding five years. The average decrease in the levels of NO(x) and traffic-related volatile organic compounds was higher than 50 %, while O(3) concentrations did not exhibit significant variations during the study period. Our results show that temporal variations in PM(1) and PM(10) concentrations were strongly affected by the frequency of Saharan dust events. When these episodes were excluded from the analysis period, a 35 % decrease in PM(1) and PM(10) levels was observed. Traffic restrictions during the lockdown led to important reductions in the concentrations of elemental carbon and metals derived from road dust (e.g. Ca and Fe) and break wear (e.g. Cu). Regarding secondary inorganic aerosols, nitrate showed the largest reductions as a consequence of the drop in local emissions of NO(x). |*Air Pollutants/analysis[MESH] |*COVID-19[MESH] |Aerosols/analysis[MESH] |Communicable Disease Control[MESH] |Environmental Monitoring[MESH] |Humans[MESH] |Particulate Matter/analysis[MESH]Changes in the concentration and composition of urban aerosols during (epmc).pdf DeepDyve Pubget Overpricing