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Development of 1 ×1 km gridded emission inventory for air quality assessment and mitigation strategies from open biomass burning in Karnataka, India
Urban Climate ( IF 6.0 ) Pub Date : 2024-10-19 , DOI: 10.1016/j.uclim.2024.102168
Narayan Kayet, Tejaswini Eregowda, Likitha M P, Akshay Kumar V Ganeshker, Geeta Hegde

In this work, we have developed a high-resolution (1 ×1 km grid) emission inventory of greenhouse gases and air pollutants from open biomass burning (OBB) in Karnataka for 2000, 2005, 2010, 2015, 2020, and 2022. Secondary and field datasets were used to validate the emission inventories. The GIS-based statistical model and activity data were used to estimate greenhouse and air pollutant gas emissions from OBB (Forest, grassland, and crop fires). The uncertainty analysis of the emissions were done using the Monte Carlo Simulation (MCS) model and Low Emission Analysis Platform (LEAP) tool was used for projecting the emissions to 2050 based on the annual average growth rate. According to our results, the total OBB burned areas (%) in Karnataka during the aforementioned years were 24.43, 15.69, 15.95, 11.41, 26.73, and 5.78. The results showed that total annual average OBB emissions in Karnataka for 2000–2022 in Gg were SO2 (6.67), NOx (9.48), NH3(9.80), CO (670.12), OC (59.78), BC (5.09), CO2 (11071 .11), CH4(33.68), PM10(84.29), PM2.5(81.08), NMVOC (74.13), and NO2 (4.80) respectively. The districts of Kalburgi, Raichur, Bagalkot, Uttara Kannada, and Shivamogga have the highest emissions from OBB in Karnataka from 2000 to 2022. The emission uncertainty results showed ±26.92, ±28.17, and ±30.27 % for the crop, grassland, and forest fires, respectively. Under the business-as-usual (BAU) scenarios, the CH4 emissions from forest, grassland, and crop fires are projected at 8823, 2.64, and 5262 metric tonnes by 2030 and 58046, 10, and 30700 metric tonnes by 2050, respectively. The developed high-resolution inventories are the most up-to-date surface emission datasets with hotspots in Karnataka from OBB emission. National Clean Air Programme (NCAP) and India’s Net-Zero Emission target by 2070, our high-resolution emission inventories and mitigation strategies may be helpful for air quality monitoring, health benefits analysis, and policy-making studies in Karnataka, India.

中文翻译:


在印度卡纳塔克邦开发 1 ×1 公里网格化排放清单,用于露天生物质燃烧的空气质量评估和缓解策略



在这项工作中,我们开发了 2000 年、2005 年、2010 年、2015 年、2020 年和 2022 年卡纳塔克邦开放式生物质燃烧 (OBB) 产生的温室气体和空气污染物的高分辨率(1 ×1 公里网格)排放清单。二手数据集和现场数据集用于验证排放清单。基于 GIS 的统计模型和活动数据用于估计 OBB(森林、草原和农作物火灾)的温室气体和空气污染物气体排放。使用蒙特卡洛模拟 (MCS) 模型对排放进行了不确定性分析,并使用低排放分析平台 (LEAP) 工具根据年平均增长率预测到 2050 年的排放量。根据我们的结果,上述年份卡纳塔克邦的 OBB 总燃烧面积 (%) 为 24.43、15.69、15.95、11.41、26.73 和 5.78。结果表明,2000-2022 年卡纳塔克邦年平均 OBB 总排放量(以 Gg 为单位)分别为 SO2 (6.67)、NOx (9.48)、NH3 (9.80)、CO (670.12)、OC (59.78)、BC (5.09)、CO2 (11071 .11)、CH4 (33.68)、PM10 (84.29)、PM2.5 (81.08)、NMVOC (74.13) 和 NO2 (4.80)。从 2000 年到 2022 年,Kalburgi、Raichur、Bagalkot、Uttara Kannada 和 Shivamogga 区的 OBB 排放量在卡纳塔克邦最高。排放不确定性结果显示,农作物、草地和森林火灾的排放不确定性分别为 ±26.92、±28.17 和 ±30.27%。在一切照旧 (BAU) 情景下,预计到 2030 年森林、草原和农作物火灾的 CH4 排放量为 8823、2.64 和 5262 公吨,到 2050 年分别为 58046、10 和 30700 公吨。开发的高分辨率清单是最新的地表排放数据集,其中包含卡纳塔克邦 OBB 排放的热点。 国家清洁空气计划 (NCAP) 和印度到 2070 年实现净零排放目标,我们的高分辨率排放清单和缓解策略可能有助于印度卡纳塔克邦的空气质量监测、健康益处分析和政策制定研究。
更新日期:2024-10-19
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