دورية أكاديمية
On the seasonality of long-range transport of acidic pollutants in East Asia
| العنوان: | On the seasonality of long-range transport of acidic pollutants in East Asia |
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| المؤلفون: | Chung-Te Chang, Lixin Wang, Lih-Jih Wang, Chiung-Pin Liu, Ci-Jian Yang, Jr-Chuan Huang, Chiao-Ping Wang, Neng-Huei Lin, Teng-Chiu Lin |
| المصدر: | Environmental Research Letters, Vol 17, Iss 9, p 094029 (2022) |
| بيانات النشر: | IOP Publishing, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering LCC:Environmental sciences LCC:Science LCC:Physics |
| مصطلحات موضوعية: | long-range transport, acidic pollutants, sulfate, nitrate, EANET, East Asia, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350, Science, Physics, QC1-999 |
| الوصف: | East Asia currently has the largest SO _2 and NO _x emissions in the world. The long-range transport (LRT) of acidic pollutants in this region is of great concern but the extent is not well understood. Here results from combined long-term (⩾20 years) atmospheric deposition monitoring and air trajectory analysis in East Asia were reported. The results showed that despite the large decrease of SO _2 and NO _x emissions in Taiwan, annual deposition of non-sea-salt sulfate (nss- ${\text{SO}}_4^{2 - }$ ) in northern Taiwan showed no decreasing trend during 1994–2020. However, when divided seasonally, both nss- ${\text{SO}}_4^{2 - }$ and nitrate ( ${\text{NO}}_3^ - $ ) deposition had a significant decreasing trend in the summer but not in the winter. Similar patterns were found for Japan and Korea. Air trajectory models in combination with a regional emission map indicate that LRT from eastern China contributed up to 70% of the winter deposition of nss- ${\text{SO}}_4^{2 - }$ and ${\text{NO}}_3^ - $ in Taiwan and up to 50% in Japan and Korea. The results indicate that LRT obscured the efficacy of local pollution control measures in East Asia and suggest that transboundary air pollution regulations are required to combat acid deposition. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1748-9326 |
| Relation: | https://doaj.org/toc/1748-9326 |
| DOI: | 10.1088/1748-9326/ac8b99 |
| URL الوصول: | https://doaj.org/article/22d6f725044f4dbf888b4f1ebe38bc1b |
| رقم الأكسشن: | edsdoj.22d6f725044f4dbf888b4f1ebe38bc1b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17489326 |
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| DOI: | 10.1088/1748-9326/ac8b99 |