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Sailesh N. Behera

Bio: Sailesh N. Behera is an academic researcher from Shiv Nadar University. The author has contributed to research in topics: Air quality index & Emission inventory. The author has an hindex of 19, co-authored 39 publications receiving 1790 citations. Previous affiliations of Sailesh N. Behera include National University of Singapore & National Institute of Standards and Technology.

Papers
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Journal ArticleDOI
TL;DR: This review article integrates the knowledge available on atmospheric NH3 from the literature in a systematic manner, describes the environmental implications of unabated NH3 emissions and provides a scientific basis for developing effective control strategies for NH3.
Abstract: Gaseous ammonia (NH3) is the most abundant alkaline gas in the atmosphere. In addition, it is a major component of total reactive nitrogen. The largest source of NH3 emissions is agriculture, including animal husbandry and NH3-based fertilizer applications. Other sources of NH3 include industrial processes, vehicular emissions and volatilization from soils and oceans. Recent studies have indicated that NH3 emissions have been increasing over the last few decades on a global scale. This is a concern because NH3 plays a significant role in the formation of atmospheric particulate matter, visibility degradation and atmospheric deposition of nitrogen to sensitive ecosystems. Thus, the increase in NH3 emissions negatively influences environmental and public health as well as climate change. For these reasons, it is important to have a clear understanding of the sources, deposition and atmospheric behaviour of NH3. Over the last two decades, a number of research papers have addressed pertinent issues related to NH3 emissions into the atmosphere at global, regional and local scales. This review article integrates the knowledge available on atmospheric NH3 from the literature in a systematic manner, describes the environmental implications of unabated NH3 emissions and provides a scientific basis for developing effective control strategies for NH3.

659 citations

Journal ArticleDOI
TL;DR: It is conclusively established that while there are higher contributions of NH4+, SO4(2-) to PM(2.5) in summer but for nitrates (in particulate phase), it is the winter season, which is critical because of low temperatures that drives the reaction between ammonia and HNO3 in forward direction for enhanced nitrate formation.

220 citations

Journal ArticleDOI
TL;DR: Deposition of inhaled potentially toxic trace elements in various regions of the human respiratory system was estimated using a Multiple-Path Particle Dosimetry model, finding that particle depositions in the respiratory system tend to be more severe during hazy days than those during nonhazy days.
Abstract: Recurring biomass burning-induced smoke haze is a serious regional air pollution problem in Southeast Asia (SEA). The June 2013 haze episode was one of the worst air pollution events in SEA. Size segregated particulate samples (2.5–1.0 μm; 1.0–0.5 μm; 0.5– 0.2 μm; and 60%) of the elements was present in oxidizable and residual fractions while the bioavailable (exchangeable) fraction accounted for up to 20% for most of the elements except K and Mn. Deposition of inhaled potentially toxic trace elements in various regions of the h...

216 citations

Journal ArticleDOI
TL;DR: In this article, a study was conducted to understand the formation of inorganic secondary particles (nitrates and sulfates) in the atmosphere, and the study was designed to measure the atmospheric levels of NH þ þ ; Ca 2þ ; Mg 2 þ ; Na þ ; K þ ; NO � ; SO 2� 4 ; CI � ; NH3 gas ðÞ ; HNO3 gas Ã Ã Þ ; NO2 and PM10 PM2:5=PM10 ratio ¼ 0:74
Abstract: Levels of fine Particulate Matter (PMfine), SO2 and NOx are interlinked through atmospheric reactions to a large extent. NOx ,N H3 ,S O2, temperature and humidity are the important atmospheric constituents/conditions governing formation of fine particulate sulfates and nitrates. To understand the formation of inorganic secondary particles (nitrates and sulfates) in the atmosphere, a study was undertaken in Kanpur, India. Specifically, the study was designed to measure the atmospheric levels of NH þ ; Ca 2þ ; Mg 2þ ; Na þ ; K þ ; NO � ; SO 2� 4 ; CI � ; NH3 gas ðÞ ; HNO3 gas ðÞ ; NO2 and PM10 PM2:5=PM10 ratio ¼ 0:74

129 citations

Journal ArticleDOI
TL;DR: In this article, a thermal plasma in-flight technique has been adopted to synthesize nanocrystalline ZnO and carbon doped nanocrystine znO matrix.

125 citations


Cited by
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Journal ArticleDOI
01 Jun 1965-Nature
TL;DR: Polycyclic Hydrocarbons Vol. 1, No. 2 as mentioned in this paper, with a chapter on carcinogenesis by Regina Schoental. Pp. lvii + 487.
Abstract: Polycyclic Hydrocarbons Vol. 1. Pp. xxvi + 487. 126S. (With a chapter on carcinogenesis by Regina Schoental.) Vol. 2. Pp. lvii + 487. 140s. By E. Clar. (London and New York: Academic Press; Berlin: Springer-Verlag, 1964.)

1,175 citations

01 Jan 2016
TL;DR: The logistic regression a self learning text is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can get it instantly.
Abstract: Thank you very much for downloading logistic regression a self learning text. As you may know, people have search hundreds times for their favorite books like this logistic regression a self learning text, but end up in malicious downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they are facing with some infectious bugs inside their desktop computer. logistic regression a self learning text is available in our book collection an online access to it is set as public so you can get it instantly. Our digital library spans in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Merely said, the logistic regression a self learning text is universally compatible with any devices to read.

999 citations

Journal ArticleDOI
TL;DR: In this paper, the missing source of sulfate and particulate matter can be explained by reactive nitrogen chemistry in aerosol water, where the alkaline aerosol components trap SO 2, which is oxidized by NO 2 to form sulfate, whereby high reaction rates are sustained by the high neutralizing capacity of the atmosphere.
Abstract: Fine-particle pollution associated with winter haze threatens the health of more than 400 million people in the North China Plain. Sulfate is a major component of fine haze particles. Record sulfate concentrations of up to ~300 μg m −3 were observed during the January 2013 winter haze event in Beijing. State-of-the-art air quality models that rely on sulfate production mechanisms requiring photochemical oxidants cannot predict these high levels because of the weak photochemistry activity during haze events. We find that the missing source of sulfate and particulate matter can be explained by reactive nitrogen chemistry in aerosol water. The aerosol water serves as a reactor, where the alkaline aerosol components trap SO 2 , which is oxidized by NO 2 to form sulfate, whereby high reaction rates are sustained by the high neutralizing capacity of the atmosphere in northern China. This mechanism is self-amplifying because higher aerosol mass concentration corresponds to higher aerosol water content, leading to faster sulfate production and more severe haze pollution.

821 citations

Journal ArticleDOI
TL;DR: A transparent air filter for indoor air protection through windows that uses natural passive ventilation to effectively protect the indoor air quality and has the best PM2.5 removal efficiency in Beijing.
Abstract: Particulate matter pollution is a public health concern in industrialized and urban areas. Here, the authors control the surface chemistry and microstructure of filtration materials to fabricate effective and transparent air filters for the capture of PM2.5 pollutants.

747 citations

Journal ArticleDOI
TL;DR: This review article integrates the knowledge available on atmospheric NH3 from the literature in a systematic manner, describes the environmental implications of unabated NH3 emissions and provides a scientific basis for developing effective control strategies for NH3.
Abstract: Gaseous ammonia (NH3) is the most abundant alkaline gas in the atmosphere. In addition, it is a major component of total reactive nitrogen. The largest source of NH3 emissions is agriculture, including animal husbandry and NH3-based fertilizer applications. Other sources of NH3 include industrial processes, vehicular emissions and volatilization from soils and oceans. Recent studies have indicated that NH3 emissions have been increasing over the last few decades on a global scale. This is a concern because NH3 plays a significant role in the formation of atmospheric particulate matter, visibility degradation and atmospheric deposition of nitrogen to sensitive ecosystems. Thus, the increase in NH3 emissions negatively influences environmental and public health as well as climate change. For these reasons, it is important to have a clear understanding of the sources, deposition and atmospheric behaviour of NH3. Over the last two decades, a number of research papers have addressed pertinent issues related to NH3 emissions into the atmosphere at global, regional and local scales. This review article integrates the knowledge available on atmospheric NH3 from the literature in a systematic manner, describes the environmental implications of unabated NH3 emissions and provides a scientific basis for developing effective control strategies for NH3.

659 citations