التفاصيل البيبلوغرافية
| العنوان: |
Effects of Winter Heating on Urban Black Carbon: Characteristics, Sources and Its Correlation with Meteorological Factors. |
| المؤلفون: |
Liu, Xinyu, Wei, Yangbing, Liu, Xinhui, Zu, Lei, Wang, Bowen, Wang, Shenbo, Zhang, Ruiqin, Zhu, Rencheng |
| المصدر: |
Atmosphere; Jul2022, Vol. 13 Issue 7, p1071-N.PAG, 16p |
| مصطلحات موضوعية: |
CARBON-black, AIR pollution, WINTER, HEATING, BIOMASS burning, CARBONACEOUS aerosols, COAL combustion, CO-combustion |
| مصطلحات جغرافية: |
HENAN Sheng (China), ZHENGZHOU Shi (China), CHINA |
| مستخلص: |
Coal combustion for winter heating is a major source of heavy atmospheric pollution in China, while its impacts on black carbon (BC) are not yet clear. A dual-spot Aethalometer was selected to monitor the atmospheric BC concentration in Zhengzhou, China, during the heating season, which is from 15 November through 15 March of the following year, and the non-heating season (days other than heating season). The characteristics and sources of BC were analyzed, and a concentration weight trajectory (CWT) analysis was conducted. The results showed that the BC concentrations in the heating season were generally higher than those in the non-heating season. The diurnal variation in BC concentrations during heating season was bimodal, and that during the non-heating season was unimodal. The α-values in the heating and non-heating seasons indicated that combustion of coal and biomass and vehicle emissions were the major BC sources for the heating season and non-heating season, respectively. BC concentrations were positively correlated with PM2.5, PM10, CO, and NOX. There was a strong negative correlation between wind speed and BC concentrations, and that for relative humidity was the opposite. BC concentration during heating season was mainly influenced by the northwestern areas of China and the eastern part of Henan, and that in the non-heating season was mainly from the northeastern areas of China and southern Henan. [ABSTRACT FROM AUTHOR] |
|
Copyright of Atmosphere is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder