Search Results - "Sahu, Lokesh K"

Understanding Sources and Composition of Black Carbon and PM2.5 in Urban Environments in East India by Ambade, Balram, Sankar, Tapan Kumar, Sahu, Lokesh K., Dumka, Umesh Chandra

“…Black carbon (BC) and PM2.5 chemical characterizations are crucial for insight into their impact on the health of the exposed population. PM2.5 sampling was…”
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Distribution of volatile organic compounds over Indian subcontinent during winter: WRF-chem simulation versus observations by Chutia, Lakhima, Ojha, Narendra, Girach, Imran A., Sahu, Lokesh K., Alvarado, Leonardo M.A., Burrows, John P., Pathak, Binita, Bhuyan, Pradip Kumar

“…We investigate the distribution of volatile organic compounds (VOCs) over Indian subcontinent during a winter month of January 2011 combining the regional…”
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Comparison of Black Carbon Mass Concentrations Observed by Multi-Angle Absorption Photometer (MAAP) and Continuous Soot-Monitoring System (COSMOS) on Fukue Island and in Tokyo, Japan by Kanaya, Yugo, Taketani, Fumikazu, Komazaki, Yuichi, Liu, Xianyun, Kondo, Yutaka, Sahu, Lokesh K., Irie, Hitoshi, Takashima, Hisahiro

“…Reducing uncertainties associated with measurements of black carbon (BC) particles is critical for improved quantification of their impacts on climate and…”
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Comprehensive organic emission profiles, secondary organic aerosol production potential, and OH reactivity of domestic fuel combustion in Delhi, India by Stewart, Gareth J, Nelson, Beth S, Acton, W. Joe F, Vaughan, Adam R, Hopkins, James R, Yunus, Siti S. M, Hewitt, C. Nicholas, Nemitz, Eiko, Mandal, Tuhin K, Gadi, Ranu, Sahu, Lokesh. K, Rickard, Andrew R, Lee, James D, Hamilton, Jacqueline F

“…Domestic solid fuel combustion is a major source of organic compounds to the atmosphere in gas and aerosol phases; however, large uncertainties exist in the…”
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Temporal variability of atmospheric particulate-bound polycyclic aromatic hydrocarbons (PAHs) over central east India: sources and carcinogenic risk assessment by Ambade, Balram, Kumar, Amit, Kumar, Ashwini, Sahu, Lokesh K.

“…Atmospheric polycyclic aromatic hydrocarbons (PAHs) are of significant interest owing to their high potential health effects, including mutagenicity and…”
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A Comparative Study in Black Carbon Concentration and its Emission Sources in Tribal Area by Ambade, Balram, Sankar, Tapan Kumar, Gupta, Mansi, Sahu, Lokesh K., Gautam, Sneha

“…In this study, we have assessed the concentrations of black carbon (BC) measured using Aethalometer during different cooking periods in five different types of…”
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Photochemical evolution of air in a tropical urban environment of India: A model-based study by Soni, Meghna, Girach, Imran, Sahu, Lokesh K., Ojha, Narendra

“…The photochemical processes over tropical Indian region impact the atmospheric composition and air quality over local to global scales; nevertheless, studies…”
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Radiative transfer modeling of filter-based measurements of light absorption by particles: Importance of particle size dependent penetration depth by Moteki, Nobuhiro, Kondo, Yutaka, Nakayama, Tomoki, Kita, Kazuyuki, Sahu, Lokesh K., Ishigai, Takuya, Kinase, Takeshi, Matsumi, Yutaka

“…We present new physical models to interpret the response characteristics of filter-based measurements of aerosol light absorption. They were motivated by a…”
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Tropospheric carbon monoxide over the northern Indian Ocean during winter: influence of inter-continental transport by Girach, Imran A., Nair, Prabha R., Ojha, Narendra, Sahu, Lokesh K.

“…South Asian outflow over the adjoining marine regions is most pronounced during winter season, whereas the prevalence of strong winds aloft can transport the…”
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Seasonality of tropospheric ozone and water vapor over Delhi, India: a study based on MOZAIC measurement data by Sahu, Lokesh K., Lal, Shyam, Thouret, Valérie, Smit, Herman G.

“…Tropospheric distributions of ozone (O 3 ) and water vapor (H 2 O) have been presented based on the M easurements of OZ one and water vapor by A irbus I…”
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Source characterization of volatile organic compounds measured by proton-transfer-reaction time-of-flight mass spectrometers in Delhi, India by Wang, Liwei, Slowik, Jay G, Tripathi, Nidhi, Bhattu, Deepika, Rai, Pragati, Kumar, Varun, Vats, Pawan, Satish, Rangu, Baltensperger, Urs, Ganguly, Dilip, Rastogi, Neeraj, Sahu, Lokesh K, Tripathi, Sachchida N, Prévôt, André S. H

“…Characteristics and sources of volatile organic compounds (VOCs) were investigated with highly time-resolved simultaneous measurements by two…”
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Comprehensive multiphase chlorine chemistry in the box model CAABA/MECCA: implications for atmospheric oxidative capacity by Soni, Meghna, Sander, Rolf, Sahu, Lokesh K, Taraborrelli, Domenico, Liu, Pengfei, Patel, Ankit, Girach, Imran A, Pozzer, Andrea, Gunthe, Sachin S, Ojha, Narendra

“…Tropospheric chlorine chemistry can strongly impact the atmospheric oxidation capacity and composition, especially in urban environments. To account for these…”
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Real-time measurements of non-methane volatile organic compounds in the central Indo-Gangetic basin, Lucknow, India: source characterisation and their role in O3 and secondary organic aerosol formation by Jain, Vaishali, Tripathi, Nidhi, Tripathi, Sachchida N, Gupta, Mansi, Sahu, Lokesh K, Murari, Vishnu, Sreenivas Gaddamidi, Shukla, Ashutosh K, Prevot, Andre S H

“…Lucknow is the capital of India's largest state, Uttar Pradesh, one of South Asia's most polluted urban cities. Tropospheric photochemistry relies on…”
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Impact of the tropical cyclone Nilam on the vertical distribution of carbon monoxide over Chennai on the Indian peninsula by Sahu, Lokesh K., Tripathi, Nidhi, Sheel, Varun, Kajino, Mizuo, Deushi, Makoto, Yadav, Ravi, Nedelec, Philippe

“…The present study investigates the impact of tropical cyclone (TC) Nilam on the vertical distribution of carbon monoxide (CO) over Chennai in southern India…”
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Emissions of intermediate-volatility and semi-volatile organic compounds from domestic fuels used in Delhi, India by Stewart, Gareth J, Nelson, Beth S, Acton, W. Joe F, Vaughan, Adam R, Farren, Naomi J, Hopkins, James R, Ward, Martyn W, Swift, Stefan J, Arya, Rahul, Mondal, Arnab, Jangirh, Ritu, Ahlawat, Sakshi, Yadav, Lokesh, Sharma, Sudhir K, Yunus, Siti S. M, Hewitt, C. Nicholas, Nemitz, Eiko, Mullinger, Neil, Gadi, Ranu, Sahu, Lokesh K, Tripathi, Nidhi, Rickard, Andrew R, Lee, James D, Mandal, Tuhin K, Hamilton, Jacqueline F

“…Biomass burning emits significant quantities of intermediate-volatility and semi-volatile organic compounds (I/SVOCs) in a complex mixture, probably containing…”
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Emissions of non-methane volatile organic compounds from combustion of domestic fuels in Delhi, India by Stewart, Gareth J, Acton, W. Joe F, Nelson, Beth S, Vaughan, Adam R, Hopkins, James R, Arya, Rahul, Mondal, Arnab, Jangirh, Ritu, Ahlawat, Sakshi, Yadav, Lokesh, Sharma, Sudhir K, Dunmore, Rachel E, Yunus, Siti S. M, Hewitt, C. Nicholas, Nemitz, Eiko, Mullinger, Neil, Gadi, Ranu, Sahu, Lokesh K, Tripathi, Nidhi, Rickard, Andrew R, Lee, James D, Mandal, Tuhin K, Hamilton, Jacqueline F

“…Twenty-nine different fuel types used in residential dwellings in northern India were collected from across Delhi (76 samples in total). Emission factors of a…”
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Morphological characteristics of bioaerosols from contrasting locations in southern tropical India – A case study by Valsan, Aswathy E., Priyamvada, Hema, Ravikrishna, R., Després, Viviane R., Biju, C.V., Sahu, Lokesh K., Kumar, Ashwini, Verma, R.S., Philip, L., Gunthe, Sachin S.

“…Bioaerosols, which are ubiquitous in the earth's atmosphere, are poorly characterized in terms of their physical and chemical properties. Improved knowledge of…”
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Surface ozone over Doon valley of the Indian Himalaya: Characteristics, impact assessment, and model results by Harithasree, S., Sharma, Kiran, Girach, Imran A., Sahu, Lokesh K., Nair, Prabha R., Singh, Narendra, Flemming, Johannes, Babu, S. Suresh, Ojha, N.

“…The air quality and climate of the Himalaya is found to be impacted profoundly by strong anthropogenic emissions and photochemical processes in the valley…”
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Emission estimates and inventories of non-methane volatile organic compounds from anthropogenic burning sources in India by Stewart, Gareth J., Nelson, Beth S., Acton, W. Joe F., Vaughan, Adam R., Hopkins, James R., Yunus, Siti S.M., Hewitt, C. Nicholas, Wild, Oliver, Nemitz, Eiko, Gadi, Ranu, Sahu, Lokesh K., Mandal, Tuhin K., Gurjar, Bhola R., Rickard, Andrew R., Lee, James D., Hamilton, Jacqueline F.

“…Comprehensive, spatially disaggregated emission inventories are required for many developing regions to evaluate the relative impacts of different sources and…”
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Evaluating Model Parameterizations of Submicron Aerosol Scattering and Absorption with in situ Data from ARCTAS 2008 by Alvarado, Matthew J., Lonsdale, Chantelle R., Macintyre, Helen L., Bian, Huisheng, Chin, Mian, Ridley, David A., Heald, Colette L., Thornhill, Kenneth L., Anderson, Bruce E., Cubison, Michael J., Jimenez, Jose. L., Kondo, Yutaka, Sahu, Lokesh K., Dibb, Jack E., Wang, Chien

“…Accurate modeling of the scattering and absorption of ultraviolet and visible radiation by aerosols is essential for accurate simulations of atmospheric…”
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