Study of Volatile Organic Compounds in Indoor and Outdoor Air(I).

This study characterized emissions of particulate matter (PM), volatile organic compounds (VOCs), heavy metals, and anions from Mongolian bituminous coals in a controlled heating experiment. Three coal samples from Alag Tolgoi (coal 1), Baganuur (coal 2), and Nalaikh (coal 3) were combusted at a constant heat flux of 50 kW/m2 using a dual-cone calorimeter. The coal samples were commonly used in ger district of Ulaanbaatar, Mongolia. PM10 emission factors were 1122.9 ± 526.2, 958.1 ± 584.0, and 472.0 ± 57.1 mg/kg for coal samples 1, 2, and 3, respectively. PM with a diameter of 0.35–0.45 µm was dominant and accounted for 41, 34, and 48% of the total PM for coal samples 1, 2, and 3, respectively. The emissions of PM and VOC from coals commonly used in Ulaanbaatar, Mongolia were significant enough to cause extremely high levels of indoor and outdoor air pollution.

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Corrigendum for “Indoor and Outdoor Volatile Organic Compounds at Office Buildings in Kuwait”

Air Soil and Water Research ◽

10.4137/aswr.s15252 ◽

2014 ◽

Vol 7 ◽

pp. ASWR.S15252

Author(s):

Humood F. Al-Mudhaf ◽

Abdel-Sattar I. Abu-Shady ◽

Nabeel M. Al-Khulaifi ◽

Mustafa I. Selim

Keyword(s):

Volatile Organic Compounds ◽

Organic Compounds ◽

Office Buildings ◽

Volatile Organic ◽

Indoor And Outdoor

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Indoor and Outdoor Exposure to Volatile Organic Compounds and Health Risk Assessment in Residents Living near an Optoelectronics Industrial Park

Atmosphere ◽

10.3390/atmos10070380 ◽

2019 ◽

Vol 10 (7) ◽

pp. 380 ◽

Cited By ~ 3

Author(s):

Ta-Yuan Chang ◽

Chin-Lin Liu ◽

Kuei-Hung Huang ◽

Hsien-Wen Kuo

Keyword(s):

Volatile Organic Compounds ◽

Cancer Risk ◽

Organic Compounds ◽

Hazard Index ◽

Outdoor Exposure ◽

Industrial Park ◽

Benzene Exposure ◽

Mass Selective Detector ◽

Volatile Organic ◽

Indoor And Outdoor

This study aimed to determine indoor and outdoor levels of volatile organic compounds (VOCs) and to assess potential risks among residents living in the vicinity of an optoelectronics industrial park in 2006–2007. We used steel canisters to collect 72 indoor samples and 80 outdoor samples over 24 h. Gas chromatography with a mass-selective detector was used for qualitative and quantitative analyses. The amounts of time residents spent doing activities in different microenvironments were determined by the self-administered questionnaire. The chronic hazard index (HIc) and cancer risk were applied to assess the non-carcinogenic and carcinogenic risks of VOCs among residents. Four VOCs of ethanol (indoor: 77.8 ± 92.8 μg/m3; outdoor: 26.8 ± 49.6 μg/m3), toluene (67.0 ± 36.7 μg/m3; 56.9 ± 19.0 μg/m3), m/p-xylene (50.8 ± 66.1 μg/m3; 21.2 ± 20.3 μg/m3), and acetone (37.7 ± 27.5 μg/m3; 25.8 ± 9.8 μg/m3) were identified as dominant components in both the indoor and outdoor environments. Total VOCs and six VOCs of benzene, toluene, ethylbenzene, m/p-xylene, o-xylene, and ethanol in indoor sites were significantly higher than those in outdoor sites (all p-values < 0.05). All estimated HIc values were less than unity and the cancer risk of benzene exposure was 1.8 × 10−4 (range: 9.3 × 10−5 to 3.4 × 10−4) based on resident time-weighted patterns. Strategies to reduce benzene exposure should be implemented to protect public health.

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