H2020Индивидуална стипендия2015–2017

EastAsiaAerosol · Sources and atmospheric processing of carbonaceous aerosol in East Asia

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2015-05-01 → 2017-04-30
Финансиране от ЕС: 185 857 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Въглеродните частици в атмосферата на Източна Азия, като тези от изгарянето на въглища, се анализират чрез изотопни изследвания. Това помага да се разберат източниците на замърсяването на въздуха и влиянието им върху здравето на хората и климата.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Sources and atmospheric processing of carbonaceous aerosol in East Asia

The overarching aim of this project is to assess the sources and atmospheric processing of East Asian aerosols between regions and different carbon fractions as well as seasonal variation. East Asia suffers from air pollution during winter with associated public health impacts. However, achieving mitigating goals remains a challenge in part due to large uncertainties concerning the contributions from different emission sources and complex atmospheric processes. Carbonaceous aerosols, including elemental carbon (EC) and organic carbon (OC), water-soluble and water insoluble organic carbon (WSOC & WIOC) are important components of the atmospheric particulate matter, affecting air quality and climate. However, the sources of carbonaceous aerosol in different components, as well as its composition and optical properties of organic carbon in this area, are still only poorly investigated and there are key gaps in current understanding. In this project, we firstly conducted dual-carbon isotope constrained source apportionment of EC, OC, WSOC, as well as WIOC in a large scale region, including Northern China Plain (Beijing & Tianjin, BTH), Yangtze River Delta (YRD; China), Korea Climate Observatory at Gosan (KCOG; South Korea) during January 2014. Second, we have conducted light-absorption of carbonaceous aerosol includes WSOC and BC for the January 2014 campaigns. Third, with an aim to uncover the seasonal trends of emission sources of carbonaceous aerosol in E. Asia, we performed a seasonal observation of BC and its sources at four key hotspot emission regions in China: BTH, YRD, PRD, and Sichuan basin. The important for society: Fossil combustion Emission was identified as a key target to combat aerosol pollution. Our examinations demonstrate that the contribution of coal combustion in BTH region were larger than liquid fossil and biomass burning combined in Winter, highlighting that cutting coal burning and improving its burning efficiency should be the top priority for efforts to fight EC and also OC emissions. Reducing aerosol emissions by reduction and replacement of high-emitting end-use coal-fired combustion processes with cleaner energy across various sectors or by using cleaner residential stoves for space heating and cooking instead of ones with uncontrolled and inefficient combustion of coal will limit global warming, benefiting both the climate and air quality. In parallel, controlling emissions from liquid-fossil-fueled vehicles should be another priority in Beijing and Shanghai megacities. Eliminating emissions from biomass burning (e.g., heating, open fires of crop residue) could be an efficient strategy in all regions.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

High loading of carbonaceous aerosols from residential combustion of coal and wood fuels, traffic, industry, and biomass burning pollute the air of East Asia. The resulting Atmospheric Brown Clouds (ABC) are in wintertime warming the atmosphere yet dimming the surface in this vast region with severe impact on the climate, food and water security as well as air quality. Although these short-lived climate pollutant (SLCP) aerosols attract large interests across the science-policy interface, efficient mitigation actions are hampered by the limited understanding of the relative contributions of different sources of combustion-derived carbonaceous aerosols and of their subsequent atmospheric processing. Here the relative contribution from fossil fuel and biomass combustion will be quantified by molecular combustion markers and powerful isotopic fingerprinting, including microscale-14C dating of BC and OC aerosols. Aerosol samples will be probed from recently established Sino-Swedish observational program in the four populated and industrialization hotspots in China (North China Plain – Beijing; Yangtze River Delta – Shanghai; Pearl River Delta – Guangzhou; Szechuan Basin– Chengdu) and from the SE Yellow Sea recipient site on a Jeju Island (Korea Climate Observatory – Gosan), providing an ideal context for these investigations. The molecular/isotopic fingerprints of such synoptic aerosol samples provide integrated source signature and possibility to assess atmospheric processing during over-ocean long-range transport. This field quantification of BC and OC sources and processing in E Asia will contribute to (a) top-down observation-based test and improvement of bottom-up technology-based emission inventories (uncertain for small-scale and open combustion); (b) improved aerosol parameterization in climate and air quality models, and (c) scientific underpinning for policy makers to make efficient mitigation actions toward decreasing anthropogenic aerosol emissions.

Оригинален текст от CORDIS (на английски).

Участници

STOCKHOLMS UNIVERSITET · StockholmКоординаторШвеция