FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4323349743> ?p ?o ?g. }

• W4323349743 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Fine particulate matter (PM_2.5) pollution is a severe problem in China. Research on the sources of Chinese PM_2.5 pollution has focused on the contributions of China’s domestic emissions. However, the impact of foreign anthropogenic emissions has typically been simplified or neglected, partly due to the perception that the short lifetime of PM_2.5 (a few days) does not allow long-distance transport. Here we explore the role of foreign anthropogenic emissions in Chinese PM_2.5 pollution in 2015 using the GEOS-Chem chemical transport model. We validate the model simulations with a comprehensive set of observations of PM_2.5 and its compositions, including sulfate, nitrate, ammonium, black carbon and primary organic aerosols, over China and its surrounding regions. We find that 8 % of PM_2.5 (5 µg m^-3) and 19 % of nitrate (2.6 µg m^-3) over eastern China in 2015 was contributed by foreign anthropogenic emissions. The contributions were the highest in January (6.9 µg m^-3 PM_2.5, with 68 % nitrate) and the lowest in July (2.7 µg m^-3 PM_2.5, with 11 % nitrate). Yet, only 30 % of such foreign contributions in January was through direct atmospheric transport. The majority (70 %) was instead through chemical interactions between foreign-transported aerosol precursors and China’s domestic emissions of pollutants. Specifically, the transport of non-methane volatile organic compounds (NMVOCs) from foreign countries enhanced the atmospheric oxidizing capacity and facilitated the oxidation of Chinese nitrogen oxides (NO_x) to form nitric acid (HNO₃) over the eastern China. The abundance of Chinese ammonia (NH₃) further partitioned nearly all HNO₃ gas to particulate nitrate, leading to the considerable foreign contributions of nitrate and PM_2.5 to the eastern China. Over southwestern China, foreign anthropogenic emissions contributed 4.9 µg m^-3 PM_2.5 concentrations (18 % of total PM_2.5 mass) to Yunnan province, with 37 % as organics and 27 % as sulfate. Our findings suggest that foreign anthropogenic emissions play an important role in Chinese PM_2.5 pollution, because of direct aerosol transport and, more importantly, chemical interactions between transported pollutants and China’s local emissions. Thus, foreign emission reductions will be very beneficial for improving Chinese air quality." @default.
• W4323349743 created "2023-03-08" @default.
• W4323349743 creator A5082901816 @default.
• W4323349743 date "2023-03-08" @default.
• W4323349743 modified "2023-10-14" @default.
• W4323349743 title "Reply on RC2" @default.
• W4323349743 doi "https://doi.org/10.5194/acp-2022-646-ac2" @default.
• W4323349743 hasPublicationYear "2023" @default.
• W4323349743 type Work @default.
• W4323349743 citedByCount "0" @default.
• W4323349743 crossrefType "peer-review" @default.
• W4323349743 hasAuthorship W4323349743A5082901816 @default.
• W4323349743 hasBestOaLocation W43233497431 @default.
• W4323349743 hasConcept C107872376 @default.
• W4323349743 hasConcept C121332964 @default.
• W4323349743 hasConcept C153294291 @default.
• W4323349743 hasConcept C166957645 @default.
• W4323349743 hasConcept C178790620 @default.
• W4323349743 hasConcept C185592680 @default.
• W4323349743 hasConcept C18903297 @default.
• W4323349743 hasConcept C191935318 @default.
• W4323349743 hasConcept C205649164 @default.
• W4323349743 hasConcept C24245907 @default.
• W4323349743 hasConcept C2776384668 @default.
• W4323349743 hasConcept C2777517185 @default.
• W4323349743 hasConcept C2778343803 @default.
• W4323349743 hasConcept C2779345167 @default.
• W4323349743 hasConcept C39432304 @default.
• W4323349743 hasConcept C521259446 @default.
• W4323349743 hasConcept C559116025 @default.
• W4323349743 hasConcept C86803240 @default.
• W4323349743 hasConcept C91586092 @default.
• W4323349743 hasConceptScore W4323349743C107872376 @default.
• W4323349743 hasConceptScore W4323349743C121332964 @default.
• W4323349743 hasConceptScore W4323349743C153294291 @default.
• W4323349743 hasConceptScore W4323349743C166957645 @default.
• W4323349743 hasConceptScore W4323349743C178790620 @default.
• W4323349743 hasConceptScore W4323349743C185592680 @default.
• W4323349743 hasConceptScore W4323349743C18903297 @default.
• W4323349743 hasConceptScore W4323349743C191935318 @default.
• W4323349743 hasConceptScore W4323349743C205649164 @default.
• W4323349743 hasConceptScore W4323349743C24245907 @default.
• W4323349743 hasConceptScore W4323349743C2776384668 @default.
• W4323349743 hasConceptScore W4323349743C2777517185 @default.
• W4323349743 hasConceptScore W4323349743C2778343803 @default.
• W4323349743 hasConceptScore W4323349743C2779345167 @default.
• W4323349743 hasConceptScore W4323349743C39432304 @default.
• W4323349743 hasConceptScore W4323349743C521259446 @default.
• W4323349743 hasConceptScore W4323349743C559116025 @default.
• W4323349743 hasConceptScore W4323349743C86803240 @default.
• W4323349743 hasConceptScore W4323349743C91586092 @default.
• W4323349743 hasLocation W43233497431 @default.
• W4323349743 hasOpenAccess W4323349743 @default.
• W4323349743 hasPrimaryLocation W43233497431 @default.
• W4323349743 hasRelatedWork W1970918380 @default.
• W4323349743 hasRelatedWork W2007531017 @default.
• W4323349743 hasRelatedWork W2039918359 @default.
• W4323349743 hasRelatedWork W2085707695 @default.
• W4323349743 hasRelatedWork W2133649922 @default.
• W4323349743 hasRelatedWork W2151965649 @default.
• W4323349743 hasRelatedWork W2353971940 @default.
• W4323349743 hasRelatedWork W2381763096 @default.
• W4323349743 hasRelatedWork W2799402834 @default.
• W4323349743 hasRelatedWork W787510096 @default.
• W4323349743 isParatext "false" @default.
• W4323349743 isRetracted "false" @default.
• W4323349743 workType "peer-review" @default.