Levels and Health Risk of Carbonyl Compounds in Air of the Library in Guangzhou, South China

Lü, Huixiong; Tian, Jihui; Cai, Quan-Ying; Wen, Sheng; Liu, Yonglin; Li, Ning

doi:10.4209/aaqr.2015.09.0533

Cited by 21 publications

(10 citation statements)

References 34 publications

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“…These two species have been targeted in numerous toxicological studies owing to their deleterious health effects (Health and Services, 1999; Neghab et al, 2017; Salthammer et al, 2010; Til et al, 1988; Tunsaringkarn et al, 2012b, 2012c). Their ubiquity and importance in ambient air have been documented in many past studies (Lü et al, 2016; Neghab et al, 2017; Sarkar et al, 2017). Owing to rapid global urbanization and population growth, characterizing the concentrations and health effects of these aldehyde species is important as vehicular emissions are a major pollutant source in urban centers (Bauri et al, 2016; Crosbie et al, 2014; Hazrati et al, 2016b; Mannucci and Franchini, 2017; Masih et al, 2016; Morknoy et al, 2011; Rad et al, 2014; Sarkar et al, 2017; Saxena and Ghosh, 2012; Tunsaringkarn et al, 2014).…”

Section: Introductionmentioning

confidence: 96%

“…One of the main anthropogenic sources of air pollution in urban atmospheres is vehicular exhaust (Lü et al, 2010, 2016; Viskari et al, 2000), with a chief component being volatile organic compounds (VOCs) (Ho et al, 2016; Tunsaringkarn et al, 2012a). The main class of VOCs is aldehyde species, with the primary components being formaldehyde (HCHO, hereinafter FA) and acetaldehyde (CH 3 CHO, hereinafter AA).…”

Section: Introductionmentioning

confidence: 99%

“…Emissions sources include vegetation and anthropogenic sources such as gas stations, motor vehicle emissions, and bus terminals (Anderson et al, 1996; de Mendonça Ochs et al, 2015; Duan et al, 2012; Lü et al, 2010; Morknoy et al, 2011; Nogueira et al, 2014; Nogueira et al, 2017; Viskari et al, 2000). Concentrations of these species have been reported to depend on meteorological conditions such as temperature, humidity, and wind speed (Lü et al, 2016; Missia et al, 2010; Morknoy et al, 2011). According to United States Environmental Protection Agency (U.S. EPA), FA and AA are classified as group B1 (human carcinogen) and group B2 (probable human carcinogen) species, respectively (de Mendonça Ochs et al, 2015; Rodrigues et al, 2012; USEPA, 1999a, 1999b).…”

Section: Introductionmentioning

confidence: 99%

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Characteristics and health effects of formaldehyde and acetaldehyde in an urban area in Iran

Delikhoon

Fazlzadeh

Sorooshian

et al. 2018

Environmental Pollution

108

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This study reports a spatiotemporal characterization of formaldehyde and acetaldehyde in the summer and winter of 2017 in the urban area of Shiraz, Iran. Sampling was fulfilled according to EPA Method TO-11 A. The inverse distance weighting (IDW) procedure was used for spatial mapping. Monte Carlo simulations were conducted to evaluate carcinogenic and non-cancer risk owing to formaldehyde and acetaldehyde exposure in 11 age groups. The average concentrations of formal-dehyde/acetaldehyde in the summer and winter were 15.07/8.40 μg m−3 and 8.57/3.52 μg m−3, respectively. The formaldehyde to acetaldehyde ratios in the summer and winter were 1.80 and 2.43, respectively. The main sources of formaldehyde and acetaldehyde were photochemical generation, vehicular traffic, and biogenic emissions (e.g., coniferous and deciduous trees). The mean inhalation lifetime cancer risk (LTCR) values according to the Integrated Risk Information System (IRIS) for formaldehyde and acetaldehyde in summer and winter ranged between 7.55 × 10−6 and 9.25 × 10−5, which exceed the recommended value by US EPA. The average LTCR according to the Office of Environmental Health Hazard Assessment (OEHHA) for formaldehyde and acetaldehyde in summer and winter were between 4.82 × 10−6 and 2.58 × 10−4, which exceeds recommended values for five different age groups (Birth to <1, 1 to <2, 2 to < 3, 3 to <6, and 6 to <11 years). Hazard quotients (HQs) of formaldehyde ranged between 0.04 and 4.18 for both seasons, while the HQs for acetaldehyde were limited between 0.42 and 0.97.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics and health effects of formaldehyde and acetaldehyde in an urban area in Iran

Delikhoon

Fazlzadeh

Sorooshian

et al. 2018

Environmental Pollution

108

View full text Add to dashboard Cite

show abstract

“…Fine particulate matter (FP), which differs from gas pollutants (Shy et al, 2015;Ho et al, 2016;Lü et al, 2016), is one of the most important hazardous pollutants (Lee et al, 2001;McGarry et al, 2011;Mullins et al, 2013;Stephens et al, 2013;Hussein et al, 2015;Lin et al, 2015;Mašková et al, 2016) as it is highly associated with public health concerns as toxic aerosol due to persistent lung damage (Matson, 2005;Gehin et al, 2008). Previous research has indicated that particles less than 0.5 µm in diameter might contribute the most to the adverse health effects of particulate air pollution and the risk of adverse health effects might increase with decreasing particle size (Meng et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Ultrafine Aerosol Particles from Laser Printing Process: Response Relationship between Operating Parameters and Emission Characteristics

Zhao

2017

Aerosol Air Qual. Res.

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Ultrafine aerosol particles (UFAP, diameter < 100 nm) emitted from laser printers have been considered as toxic aerosol. To address the response relationship between the operating parameters and real-time ultrafine emissions, three commercial printers were used to experimentally investigate their emission characteristics under different operating parameters including: the ready process, the number of pages printed, the page coverage and the print mode. The results showed that ultrafine particle emissions varied with the printer model. No causal correlation existed between the ultrafine particle number concentration and the PM 2.5 mass concentration of a specific printer. Ultrafine particle emission characteristics were highly associated with operating parameters other than printer/cartridge toner model. Not all of the tested printers displayed ultrafine particle emissions in the ready process. Ultrafine particle emissions increased with increasing number of printed pages and page coverage with a nonlinear relationship. Compared with continuous printing, intermittent printing has a so-called "peak-shaving" or "peak-shift" effect. The results may help to provide a simple and effective way to control and reduce ultrafine particle emissions from laser printers by means of improvement of operating conditions.

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“…However limited for the odor emissions of carbonyls and phenols have been reported (Sims et al, 1993). Carbonyls are commonly detected in the indoor or outdoor air in the environment (Bernabe et al, 2015;Yao et al, 2015;Lü et al, 2016). Their concentrations can vary due to seasonal or diurnal effects, and source differences (Guo al., 2015;Leuchner et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Characterization and Exposure Assessment of Odor Emissions from Laser Cutting of Plastics in the Optical Film Industry

Chan

Yuan

Sun

et al. 2016

Aerosol Air Qual. Res.

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The introduction of lasers as a cutting tool has become an important step in achieving further cost reductions in the multi-functional optical film industry. However, the fumes produced during laser cutting causes an annoying and often unbearable odor in the working environment. To date, little research has been reported in terms of the worker exposure assessment and odorous substances generated in the process of cutting plastics with lasers. This study firstly investigated the worker exposure assessment and the protection efficiency of the carbonyls and phenols when a laser is used to cut polycarbonate (PC) and polyethylene terephthalate (PET), the primary base materials used in optical film industry. Results indicate that the concentrations of these substances increased with the power of the laser. Due to differences in the monomer structures of these materials, a 240 W laser produced a high concentration of phenols (1.56 mg m . However, the result of the masks studies could only reduce concentrations to between 1.88 mg m -3 and 2.2 mg m -3 , which barely meet the related regulatory standards. In contrast, the installation of local ventilation alone can effectively remove as much as 99% of the gaseous substances produced in the laser cutting of plastics.

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Levels and Health Risk of Carbonyl Compounds in Air of the Library in Guangzhou, South China

Cited by 21 publications

References 34 publications

Characteristics and health effects of formaldehyde and acetaldehyde in an urban area in Iran

Characteristics and health effects of formaldehyde and acetaldehyde in an urban area in Iran

Ultrafine Aerosol Particles from Laser Printing Process: Response Relationship between Operating Parameters and Emission Characteristics

Characterization and Exposure Assessment of Odor Emissions from Laser Cutting of Plastics in the Optical Film Industry

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