Primary particle emissions from residential coal burning: Optical properties and size distributions
Primary particle emissions from residential coal burning: Optical properties and size distributions
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DOI：
10.1029/2001jd000571
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发表时间：
2002-09-01
影响因子：
4.4
通讯作者：
Charlson, RJ
中科院分区：
文献类型：
--
作者：
Bond, TC;Covert, DS;Charlson, RJ
[1] 化石燃料燃烧产生的颗粒通过吸收和散射可见光而对气候产生影响。住宅燃烧发生在家庭中用于取暖或烹饪目的，并且被认为占全球人为初级颗粒负担的很大一部分。我们展示了住宅燃烧室中燃烧的三种煤炭（烟煤、硬煤型煤和褐煤）所排放的颗粒物的光学特性和粒径分布。这些煤炭的排放量差异很大，部分原因是煤炭成分的差异。对于烟煤，颗粒物排放因子略高于当前排放清单中使用的排放因子。我们观察到光吸收较弱且具有很强的光谱依赖性的粒子。对于硬煤煤球和褐煤，发射的光吸收率很低，根据我们的测量，当前的光吸收气溶胶库存显着高估了这些来源的贡献。硬煤煤球产生的光学活性尺寸范围内的颗粒非常少。对于所有测试的煤炭，代表排放颗粒平均值所需的尺寸分布比大气尺寸分布更宽，几何标准偏差在 2.2 和 3.0 之间。
[1] Particles generated by combustion of fossil fuels contribute to climate forcing by absorbing and scattering visible light. Residential combustion takes place in homes for heating or cooking purposes and is thought to contribute a large fraction of the global burden of anthropogenic primary particles. We present optical properties and size distributions of particulate matter emitted from three types of coal burned in residential combustors: bituminous coal, hard coal briquettes, and lignite. Emissions from these coals differ significantly and can be partially explained by differences in coal composition. For bituminous coal, particulate matter emission factors are somewhat greater than those used in current emission inventories. We observe particles for which the light absorption is weak and has a strong spectral dependence. For hard coal briquettes and lignite, emitted light absorption is low, and based on our measurements, current inventories of light-absorbing aerosols significantly overestimate the contribution from these sources. Hard coal briquettes produce very few particles in the optically active size range. For all coals tested the size distributions required to represent the average of the emitted particles are broader than atmospheric size distributions, with geometric standard deviations between 2.2 and 3.0.