Department of Earth and Environmental Sciences , Indian Institute of Science Education and Research Mohali , Sector 81, SAS Nagar, Manauli PO, Mohali , Punjab 140306 , India.
Environ Sci Technol. 2019 May 7;53(9):4765-4774. doi: 10.1021/acs.est.8b07076. Epub 2019 Apr 25.
Accurate emission inventories serve as critical inputs for air quality and climate models but are poorly constrained over India. We present a new municipal open waste burning emission inventory from India (OWBEII), at a resolution of 0.1° × 0.1°. Out of the 216 (201-232) Tg y of waste produced in the year 2015, 68 (45-105) Tg y was burned in the open. To determine emissions from waste burning, emission factors of 59 non-methane volatile organic compounds (NMVOCs), CH, CO, CO, and NO were measured from garbage fires in rural and urban sites in India. The NMVOC emissions from open waste burning of 1.4-2 Tg y increase India's total anthropogenic NMVOC budget by 8-12%, while BC emissions (40-110 Ggy) increase the total anthropogenic BC emissions by 8-12%. Open waste burning in India emits 3-7 Tg y of CO and 58-130 Tg y of CO. Emissions increase the total anthropogenic CO and CO in the MIX-Asia inventory by 4-11% and 2-6%, respectively. Open waste burning may affect atmospheric OH reactivity and ozone formation rates downwind of urban centers through the emission of other highly reactive compounds such as acetaldehyde (20-320 Gg y), propene (50-170 Gg y), and ethene (50-190 Gg y) and is s source of carcinogenic benzene (30-280 Gg y).
准确的排放清单是空气质量和气候模型的关键输入,但在印度却严重不足。我们提出了一个新的印度城市露天垃圾焚烧排放清单(OWBEII),分辨率为 0.1°×0.1°。在 2015 年产生的 216(201-232)Tg 的废物中,有 68(45-105)Tg 露天焚烧。为了确定废物燃烧的排放量,我们在印度的农村和城市地区测量了垃圾火灾的 59 种非甲烷挥发性有机化合物(NMVOC)、CH、CO、CO 和 NO 的排放因子。露天垃圾焚烧排放的 NMVOC 为 1.4-2 Tg y,使印度人为 NMVOC 预算增加了 8-12%,而 BC 排放量(40-110 Ggy)使人为 BC 排放量增加了 8-12%。印度的露天垃圾焚烧排放 3-7 Tg y 的 CO 和 58-130 Tg y 的 CO。这些排放使 MIX-Asia 清单中的人为 CO 和 CO 增加了 4-11%和 2-6%。露天垃圾焚烧可能会通过排放其他高反应性化合物,如乙醛(20-320 Gg y)、丙烯(50-170 Gg y)和乙烯(50-190 Gg y),以及致癌的苯(30-280 Gg y),影响城市中心下风地区的大气 OH 反应性和臭氧形成速率。