Polycyclic aromatic hydrocarbon exposure in household air pollution from solid fuel combustion among the female population of Xuanwei and Fuyuan counties, China.
Exposure to polycyclic aromatic hydrocarbons (PAHs) from burning "smoky" (bituminous) coal has been implicated as a cause of the high lung cancer incidence in the counties of Xuanwei and Fuyuan, China. Little is known about variations in PAH exposure from throughout the region nor how fuel source and stove design affects exposure. Indoor and personal PAH exposure resulting from solid fuel combustion in Xuanwei and Fuyuan was investigated using repeated 24 h particle bound and gas-phase PAH measurements, which were collected from 163 female residents of Xuanwei and Fuyuan. 549 particle bound (283 indoor and 266 personal) and 193 gas phase (all personal) PAH measurements were collected. Mixed effect models indicated that PAH exposure was up to 6 times higher when burning smoky coal than smokeless coal and varied by up to a factor of 3 between different smoky coal geographic sources. PAH measurements from unventilated firepits were up to 5 times that of ventilated stoves. Exposure also varied between different room sizes and season of measurement. These findings indicate that PAH exposure is modulated by a variety of factors, including fuel type, coal source, and stove design. These findings may provide valuable insight into potential causes of lung cancer in the area.
Institute for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University , Utrecht 3512 JE, The Netherlands.
George S
GS
Downward
Wei
W
Hu
Nat
N
Rothman
Boris
B
Reiss
Guoping
G
Wu
Fusheng
F
Wei
Robert S
RS
Chapman
Lutzen
L
Portengen
Lan
L
Qing
Roel
R
Vermeulen
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016902:Air Pollution, Indoor / Q000009:adverse effects / Q000032:analysis*; D002681:China / Q000453:epidemiology; D003031:Coal; D003296:Cooking / Q000295:instrumentation; D003430:Cross-Sectional Studies; D005163:Factor Analysis, Statistical; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology; D008875:Middle Aged; D008962:Models, Theoretical; D011084:Polycyclic Aromatic Hydrocarbons / Q000009:adverse effects / Q000032:analysis*; D012307:Risk Factors
D003031:Coal; D011084:Polycyclic Aromatic Hydrocarbons