Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential

Dong, Dong; Shao, Min; Li, Yue; Lü, Sihua; Wang, Yanjun; Ji, Zhe; Tang, Dian

doi:10.1016/s1001-0742(13)60387-3

Cited by 52 publications

(35 citation statements)

References 20 publications

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“…It is suggested that this factor was related to vehicular emissions as ethene, ethyne, propane and propene are typical tracers of vehicular exhaust in Hong Kong (Tsai et al, 2007;Ho et al, 2009;Guo et al, 2011a, b). Furthermore, the emissionbased measurements demonstrated that vehicular emission is also an important source of carbonyls (Ho et al, 2012;Dong et al, 2014). At TMS, 10% HCHO and 32% CH 3 CHO were associated with vehicular emissions, while they were 18% HCHO and 35% CH 3 CHO at TW.…”

Section: The Correlation and Ratios Between Hcho And Ch 3 Chomentioning

confidence: 95%

“…In recent years, efforts have been made to investigate the contributions of primary emissions and secondary formation of HCHO and CH 3 CHO in different environments by using various methods, including the ratios of HCHO/CH 3 CHO, the correlation of HCHO and CH 3 CHO with other tracers, emission inventories, emission-based measurements, and receptor models such as Positive Matrix Factorization (PMF) and PCA/APCS models (Guo et al, 2004;Wei et al, 2008;Li et al, 2010;Wang et al, 2010a;Ho et al, 2012;Parrish et al, 2012;Louie et al, 2013;Dong et al, 2014). For example, by comparing the ratios of HCHO/CH 3 CHO, it was found that the extremely high levels of HCHO (17.3 ppbv) and CH 3 CHO (8.0 ppbv) at a sampling site in the Pearl River Delta region (PRD) on the evening of 15 November 2008 were related to the emissions of biomass burning (Yuan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Formaldehyde and Acetaldehyde at Different Elevations in Mountainous Areas in Hong Kong

Ling

Guo

Chen

et al. 2016

Aerosol Air Qual. Res.

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Intensive field measurements of formaldehyde (HCHO) and acetaldehyde (CH 3 CHO) were concurrently conducted at a mountain site (TMS) and an urban site (TW) at the foot of the same mountain in Hong Kong from September to November 2010. The spatiotemporal variations of HCHO and CH 3 CHO, the correlation between HCHO and CH 3 CHO and the ratios of HCHO/CH 3 CHO indicated different impacts of primary emissions and secondary formation at the two sites. The source apportionments of HCHO and CH 3 CHO at both sites were investigated using the Positive Matrix Factorization (PMF) model, while the in-situ formation of HCHO and CH 3 CHO was estimated using a Photochemical Box Model coupled with Master Chemical Mechanism (PBM-MCM). At TMS, the in-situ formation was the most significant contributor to ambient HCHO and CH 3 CHO, accounting for 51 ± 5 and 32 ± 2%, respectively, followed by the transport of photochemicallyformed aldehydes, vehicular emissions, biogenic emissions, biomass burning and solvent usage. On the other hand, at TW, the in-situ formation and vehicular emissions explained 55 ± 7% and 18 ± 1% of ambient HCHO, respectively, while vehicular emissions and in-situ formation made comparable contributions to CH 3 CHO (~35%). The findings are helpful for the formulation and implementation of appropriate control strategies for aldehydes and their precursors in Hong Kong.

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Section: The Correlation and Ratios Between Hcho And Ch 3 Chomentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Formaldehyde and Acetaldehyde at Different Elevations in Mountainous Areas in Hong Kong

Ling

Guo

Chen

et al. 2016

Aerosol Air Qual. Res.

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“…In China, for diesel vehicles, China IV vehicles have been eligible for type approval since 2010, but China III vehicles may still be sold. Dong et al (2014) have reported that the carbonyl emission of diesel vehicle would reach up to 45.8 Gg which is close to 58.4 Gg from gasoline-powered vehicles.…”

Section: Nanoparticle Pollution Impact On Human Health In China Nanopmentioning

confidence: 77%

Nanoparticle pollution and associated increasing potential risks on environment and human health: a case study of China

Gao

Yang

Jin³

2015

Environ Sci Pollut Res

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The aims of this study are (1) to discuss the mechanism of nanoparticle lifecycle and estimate the impacts of its associated pollution on environment and human health; and (2) to provide recommendation to policy makers on how to leverage nanopollution and human health along with the rapid development of economics in China. Manufactured nanoparticles (MNPs) could either directly or indirectly impair human health and the environment. Exposures to MNP include many ways, such as via inhalation, ingestion, direct contact, or the use of consumer products over the lifecycle of the product. In China, the number of people exposed to MNP has been increasing year by year. To better provide medical care to people exposed to MNP, the Chinese government has established many disease control and prevention centers over China. However, the existing facilities and resources for controlling MNP are still not enough considering the number of people impacted by MNP and the number of ordinary workers in the MNP related industry applying for their occupational identification through the Center for Disease Control and Prevention. China should assess the apparent risk environment and human health being exposed to MNP and develop action plans to reduce the possibility of direct contacts between human beings and the emerging nanomaterials. In addition, we suggest more comprehensive studies on the MNP behavior and the development of quantitative approaches to measure MNP transport, and persistence should be carried out.

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“…This high concentration of acetone could be explained by the contribution of variety of sources like vehicular emission (Dong et al, 2014), biomass burning (Lewis et al, 2013), solvent evaporation (Feng et al, 2005;Pang and Lee, 2010), biogenic emissions (Singh et al, 1994;Janson and Serves, 2001) as well as secondary photochemical productions (Singh and Hanst, 1981;Chatfield et al, 1987;Singh et al, 1994Singh et al, , 1995Reissell et al, 1999;Orlando et al, 2000) in the atmosphere of Darjeeling. Moreover acetone has longer lifetime (~15 Days) compared to other carbonyl compounds (few hours).…”

Section: General Characteristics Of the Carbonyl Compounds And Comparmentioning

confidence: 99%

“…A significant amount of acetone was also present in this factor. Several studies have identified the presence of these CCs in diesel exhaust emissions Kean et al, 2001;Jacober et al, 2008;Dong et al, 2014). High number of heavy duty trucks and 4 wheelers driven by diesel engines are the major transports over Darjeeling.…”

Section: Source Apportionment Using Positive Matrix Factorization Modmentioning

confidence: 99%

How the Atmosphere over Eastern Himalaya, India is Polluted with Carbonyl Compounds? Temporal Variability and Identification of Sources

Sarkar

Chatterjee

Majumdar

et al. 2017

Aerosol Air Qual. Res.

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A study was conducted on atmospheric carbonyl compounds for the first time over a Himalayan atmosphere in India. Samples were collected from a high altitude hill station, Darjeeling (27.01°N, 88.15°E, 2200 masl) during June 2012 to May 2013. Temporal variation, meteorological influence, source apportionment and ozone formation potential etc were studied for acetaldehyde, formaldehyde, acetone, butanaldehyde, propanaldehyde, benzaldehyde, crotonaldehyde, valeraldehyde, isovaleraldehyde, hexanaldehyde, p-tolualdehyde and o-tolualdehyde. High concentration of Acetone (81.6 ± 63.5 µg m -3 ) was observed which could be due to the higher photochemical production from its precursor volatile organic compounds emitted from tea plants and tea processing units. The concentration of acetaldehyde (20.7 ± 47.6 µg m ). Meteorological parameters like temperature and surface reaching solar radiative flux played the major roles for the seasonal variation of the carbonyl concentration over the hill station. The average ratio of formaldehyde to acetaldehyde over Darjeeling was found to be 1.64 ± 1.43 well representing a typical urban atmosphere at this part of Himalaya. Positive matrix factorization model showed that the biogenic emissions from tea plants and vehicular emissions were the major sources of carbonyl compounds over the hill station.

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Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential

Cited by 52 publications

References 20 publications

Formaldehyde and Acetaldehyde at Different Elevations in Mountainous Areas in Hong Kong

Formaldehyde and Acetaldehyde at Different Elevations in Mountainous Areas in Hong Kong

Nanoparticle pollution and associated increasing potential risks on environment and human health: a case study of China

How the Atmosphere over Eastern Himalaya, India is Polluted with Carbonyl Compounds? Temporal Variability and Identification of Sources

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