Observations of volatile organic and sulfur compounds in ambient air and health risk assessment near a paper mill in rural Idaho, U. S. A.

Autor: Scott PS; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Andrew JP; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Bundy BA; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Grimm BK; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Hamann MA; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Ketcherside DT; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Li J; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Manangquil MY; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Nuñez LA; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Pittman DL; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Rivero-Zevallos A; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Uhlorn R; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA., Johnston NAC; Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, ID, USA.
Jazyk: angličtina
Zdroj: Atmospheric pollution research [Atmos Pollut Res] 2020 Oct; Vol. 11 (10), pp. 1870-1881. Date of Electronic Publication: 2020 Jul 25.
DOI: 10.1016/j.apr.2020.07.014
Abstrakt: The Lewis-Clark Valley is a rural area that includes the cities of Lewiston, Idaho and Clarkston, Washington and the surrounding areas. The largest industry in the Lewis-Clark Valley is a pulp paper mill located in Lewiston which emits particulate matter and odorous sulfur air pollutants. This study analyzed the Lewis-Clark Valley air composition and seasonal, temporal and spatial variations of volatile organic compounds (VOCs) from 2017 to 2018 to determine potential health risks of the paper mill emissions to the surrounding community. Both active and passive air sampling via sorbent tubes were analyzed by thermal desorption - gas chromatography-mass spectrometry (TD-GC-MS). Fifty VOCs including benzene, toluene, chloroform, dimethyl sulfide and dimethyl disulfide were measured in the ambient air of the Lewis-Clark Valley at ten different sites, totaling over 800 samples. In addition, passive sorbent tubes were deployed in 2018 to obtain monthly averages in Lewis-Clark Valley and three urban locations in Idaho and Washington for comparison. United States Environmental Protection Agency (2001) methodology was used to assess cancer risks in the community based on the upper confidence levels of five carcinogens and nine air toxics. The Lewis-Clark Valley had similar levels of benzene to urban areas but had a strong signature of chloroform and sulfides from the paper mill. The cumulative cancer risk was 2 x 10 -6 - 11 × 10 -6 mainly due to the compounds chloroform, benzene and carbon tetrachloride. The hazard index of other air toxics was less than one. Overall, these air pollutants were considered low risk to the local population.
Competing Interests: Conflict of interest There is no known conflict of interest during any stage of this research. Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Databáze: MEDLINE
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