Fant 9888 publikasjoner. Viser side 58 av 396:
Black Carbon Emission Reduction Due to COVID-19 Lockdown in China
During the Lunar New Year Holiday of 2020, China implemented an unprecedented lockdown to fight the COVID-19 outbreak, which strongly affected the anthropogenic emissions. We utilized elemental carbon observations (equivalent to black carbon, BC) from 42 sites and performed inverse modeling to determine the impact of the lockdown on the weekly BC emissions and quantify the effect of the stagnant conditions on BC observations in densely populated eastern and northern China. BC emissions declined 70% (eastern China) and 48% (northern China) compared to the first half of January. In northern China, under the stagnant conditions of the first week of the lockdown, the observed BC concentrations rose unexpectedly (29%) even though the BC emissions fell. The emissions declined substantially thereafter until a week after the lockdown ended. On the contrary, in eastern China, BC emissions dropped sharply in the first week and recovered synchronously with the end of the lockdown.
American Geophysical Union (AGU)
2021
2013
2017
2024
2013
2017
2016
2012
2017
Blood lead concentrations in the population of Tbilisi, Georgia. Results of model estimates. NILU OR
2000
2012
2021
Boligprosjekt Smieøya, Skien. Beregning av luftforurensningsbelastningen. NILU OR
Det er utført beregning av produksjon og tilhørende konsentrasjoner av NO2 og PM10 omkring planlagt bolignalegg ved RV 36 på Smieøya i Skien.Spredningsberegninger viser ingen overskridelser av nasjonalt mål for NO2, men sannsynligvis enkelte overskridelser av nasjonalt mål for PM10.
2000
2013