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P. Alpert, N. Halfon, and Z. Levin

1. Introduction The study of the effects of pollution aerosols on precipitation has been in the forefront of scientific research for many years (e.g., Warner 1968 , 1971 ; Gunn and Phillips 1957 ; Changnon et al. 1971 ; Changnon 1980 ). Most measurements show that pollution influences the cloud microphysical processes (e.g., Andreae et al. 2004 , and many more) but the final link in the chain leading to precipitation is much more complex, involving interactions of dynamical as well as

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Zhicong Yin, Huijun Wang, and Xiaohui Ma

1. Introduction Recently, haze pollution has been occurring frequently in China, especially in the North China Plain where more than 300 million people live. Severe haze dramatically damages human health and reducing haze events has become a major challenge in China ( Wang 2017 ). Anthropogenic emissions are generally recognized as the fundamental cause of increases in atmospheric pollution ( Yang et al. 2016 ), especially the long-term increasing trend. Furthermore, many studies have

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Cenlin He, Olivia Clifton, Emmi Felker-Quinn, S. Ryan Fulgham, Julieta F. Juncosa Calahorrano, Danica Lombardozzi, Gemma Purser, Mj Riches, Rebecca Schwantes, Wenfu Tang, Benjamin Poulter, and Allison L. Steiner

The exchange of reactive trace gases and particulate matter (PM) between the atmosphere and terrestrial ecosystems influences air pollution, ecosystems, and climate. Even though land–atmosphere exchanges of reactive gases and PM are expected to evolve with climate and human activities, they are poorly understood from a mechanistic perspective (e.g., Barth et al. 2005 ; Fowler et al. 2009 ; Fiore et al. 2015 ; Kanakidou et al. 2018 ). Advances in the fields of atmospheric chemistry and land

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Angadh Singh and Ahmet Palazoglu

1. Introduction Air pollution episodes in a region can be attributed to high emission levels and favorable meteorological conditions. Most air pollution control strategies are aimed at emissions reductions as a measure to keep pollutant levels in check. The outcome of such strategies depends upon relatively accurate understanding of chemical transformation and long- and short-range transport of primary–secondary pollutant species in the atmosphere. Meteorological variables like temperature

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Prashant Goswami and J. Baruah

1. Introduction The recent years have seen rapid growth of megacities around the world, especially in South Asia ( Kraas 2007 ); it is estimated that 60% of the world population will live in urban areas by 2030 ( Sokhi 2008 ). This rapid growth of the urban population also brings with it increasing demands for energy-based goods and services, as well as the associated pollution. Urban air pollution has emerged as a major concern for the populations of megacities (cities having populations equal

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S. M. Saifullah, Sarwat Ismail, S. H. Khan, and M. Saleem

barrages, dams, impoundments, and dykes in response to the increasing demand of river water for agriculture and industrial development. The present situation is that hardly any river water reaches the shores of the delta, except during occasional flood periods. The present study deals with the study of heavy metal pollution in the mangrove habitat of Karachi, Pakistan, which forms the northwestern limit of the 250-km-long coastline of the delta. This site is unique in coastal Pakistan in the sense that

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LAWRENCE E. NIEMEYER

88 MONTHLY WEATHER REVIEW MARCH 1960FORECASTING AIR POLLUTION POTENTIALLAWRENCE E. NIEMEYER 2U.S. Weather Bureau Research Station, Robert A. Taft Sanitary Engineering Center, Public Health Center, Cincinnati, Ohio[Manuscript received February 2, 19601ABSTRACTA procedure for forecasting weather conditions conducive to high air pollution levels over a large area as a primaryalerting system for potentially hazardous conditions is presented. Experiments conducted in the fall of 1957 and 1958to test

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Roland Stull and Bruce Ainslie

intended for passive releases only. By making use of the dividing streamline concept ( Snyder et al. 1985 ), it could be possible to extend the SCDM to complex terrain. Acknowledgments This research was supported by grants from the Canadian Natural Sciences and Engineering Research Council, Environment Canada, and the British Columbia Ministry of Environment. REFERENCES Arya , S. P. , 1999 : Air Pollution Meteorology and Dispersion . Oxford Press, 310 pp . Briggs , G. A. , 1985 : Analytical

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Amir Givati and Daniel Rosenfeld

Mediterranean Environment) of the Commission of the European Union ( http://www.circeproject.eu/ ). REFERENCES Alpert , P. , N. Halfon , and Z. Levin , 2008 : Does air pollution really suppress precipitation in Israel? J. Appl. Meteor. Climatol. , 47 , 933 – 943 . Givati , A. , and D. Rosenfeld , 2004 : Quantifying precipitation suppression due to air pollution. J. Appl. Meteor. , 43 , 1038 – 1056 . Givati , A. , and D. Rosenfeld , 2005 : Separation between cloud-seeding and air-pollution

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Aaron R. Naeger, Michael J. Newchurch, Tom Moore, Kelly Chance, Xiong Liu, Susan Alexander, Kelley Murphy, and Bo Wang

imaging spectrometers dedicated to observing trace-gas pollution have been orbiting Earth since the late 1970s. Initial efforts were focused on understanding the global distribution of Earth’s atmospheric ozone (O 3 ) with the launches of the National Aeronautics and Space Administration (NASA) Total Ozone Mapping System (TOMS) followed by the European Space Agency’s (ESA) Global Ozone Monitoring Experiment (GOME) in the mid-1990s. Follow-on NASA and ESA satellite missions in the early 2000s

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