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Nandi S, Kumar RN, Dhandapani A, Iqbal J. Characterization of microplastics in outdoor and indoor air in Ranchi, Jharkhand, India: First insights from the region. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123543. [PMID: 38367691 DOI: 10.1016/j.envpol.2024.123543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/26/2024] [Accepted: 02/08/2024] [Indexed: 02/19/2024]
Abstract
The study focused on detecting and characterizing microplastics in outdoor and indoor air in Ranchi, Jharkhand, India during post-monsoon (2022) and winter (2023). Stereo microscopic analysis showed that plastic fibres had a dominant presence, fragments were less abundant, whereas fewer films could be detected in indoor and outdoor air. The atmospheric deposition of microplastics outdoors observed 465 ± 27 particles/m2/day in PM10 and 12104 ± 665 and 13833 ± 1152 particles/m2/day in PM2.5 in quartz and PTFE, respectively during the post-monsoon months. During winter, microplastic deposition rates in PM10 samples were found to be 689 ± 52 particles/m2/day and 19789 ± 2957 and 30087 ± 13402 in quartz and PTFE particles/m2/day respectively in PM2.5. The mean deposition rate in indoor environment during post-monsoon was 8.3 × 104 and 1.03 × 105 particles/m2/day in winter. During the post-monsoon period in PM10, there were fibres from 7.7 to 40 μm and fragments from 2.3 μm to 8.6 μm. Indoor atmospheric microplastics, fibres ranged from 1.2 to 47 μm and fragments from 0.9 to 16 μm present respectively during the post-monsoon season. Fibres and fragment sizes witnessed during winter were 3.6-6.9 μm and 2.3-34 μm, respectively. Indoor air films measured in the range of 4.1-9.6 μm. Fourier transform infrared analysis showed that outdoor air contained polyethylene, polypropylene, Polystyrene, whereas indoor air had polyvinyl chloride. Polyethylene mainly was present in outdoor air, with lesser polypropylene and polystyrene than indoors, where polyvinyl chloride and polyethylene were in dominant proportions. Elemental mapping of outdoor and indoor air samples showed the presence of elements on the microplastics. The HYSPLIT models suggest that the particles predominantly were coming from North-West during the post-monsoon season. Principal component analysis indicated wind speed and direction influencing the abundance of microplastics. Microplastics concentration showed strong seasonal influence and potential to act as reservoir of contaminants.
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Affiliation(s)
- Shreya Nandi
- Department of Civil and Environmental Engineering, Birla Institute of Technology Mesra, Ranchi, 835215, Jharkhand, India.
| | - Radhakrishnan Naresh Kumar
- Department of Civil and Environmental Engineering, Birla Institute of Technology Mesra, Ranchi, 835215, Jharkhand, India.
| | - Abisheg Dhandapani
- Department of Civil and Environmental Engineering, Birla Institute of Technology Mesra, Ranchi, 835215, Jharkhand, India.
| | - Jawed Iqbal
- Department of Civil and Environmental Engineering, Birla Institute of Technology Mesra, Ranchi, 835215, Jharkhand, India.
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Wang X, Li C, Liu K, Zhu L, Song Z, Li D. Atmospheric microplastic over the South China Sea and East Indian Ocean: abundance, distribution and source. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121846. [PMID: 31879106 DOI: 10.1016/j.jhazmat.2019.121846] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/05/2019] [Accepted: 12/06/2019] [Indexed: 05/18/2023]
Abstract
At present, microplastic (MP) is pervasive globally and has a regional difference. Recent studies have identified MP in the terrestrial atmospheric environment. However, the connection between terrigenous atmospheric MP emissions and impacts over the ocean is not well known. Here, we present the distribution of atmospheric MP abundance over the ocean based on a transoceanic survey conducted across 21 sampling transects from the Pearl River Estuary (PRE) to the South China Sea (SCS) and then to the East Indian Ocean (EIO). The abundance of atmospheric MP over the PRE (4.2 ± 2.5 items/100 m3) was significantly higher than that over the EIO (0.4 ± 0.6 items/100 m3). However, the abundance of atmospheric MP in the SCS (0.8 ± 1.3 items/100 m3) was not significantly different from the EIO and PRE. This result revealed that MP undergoes long-range transport, more than 1000 km away, through the atmosphere, but atmospheric MP transmission as the main source of oceanic MP based on transoceanic studies is not a plausible assumption. Furthermore, backward trajectory model analysis of 21 sampling transects preliminary showed the potential sources of atmospheric MP over the PRE, SCS, and EIO.
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Affiliation(s)
- Xiaohui Wang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Changjun Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Kai Liu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Lixin Zhu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Zhangyu Song
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Daoji Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
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3
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Singh A, Gandhi N, Ramesh R. Contribution of atmospheric nitrogen deposition to new production in the nitrogen limited photic zone of the northern Indian Ocean. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jc007737] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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4
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Lee JD, Moller SJ, Read KA, Lewis AC, Mendes L, Carpenter LJ. Year-round measurements of nitrogen oxides and ozone in the tropical North Atlantic marine boundary layer. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2009jd011878] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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5
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Ramanathan V, Li F, Ramana MV, Praveen PS, Kim D, Corrigan CE, Nguyen H, Stone EA, Schauer JJ, Carmichael GR, Adhikary B, Yoon SC. Atmospheric brown clouds: Hemispherical and regional variations in long-range transport, absorption, and radiative forcing. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008124] [Citation(s) in RCA: 342] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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6
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Verma S, Venkataraman C, Boucher O, Ramachandran S. Source evaluation of aerosols measured during the Indian Ocean Experiment using combined chemical transport and back trajectory modeling. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007698] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Saha A, Moorthy KK, Niranjan K. Interannual Variations of Aerosol Optical Depth over Coastal India: Relation to Synoptic Meteorology. ACTA ACUST UNITED AC 2005. [DOI: 10.1175/jam2256.1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Interannual variations in spectral aerosol optical depths (AOD) were examined using the data obtained from a chain of ground-based multiwavelength solar radiometers from various locations of the Indian peninsula during the dry winter season (January–March) of 1996–2001. All of the stations revealed significant interannual variations, even though the spatial pattern of the variations differed over the years. These interannual variations were found to be significantly influenced by the extent of the southward excursion of the intertropical convergence zone (ITCZ). The years in which the southward excursion of the ITCZ was less (i.e., the years when the wintertime ITCZ was closer to the equator) showed higher AODs than the years in which the ITCZ moved far southward. The spatial variation was found to be influenced by large-scale vertical descent of an air mass over peninsular India, the Arabian Sea, the Indian Ocean, and the Bay of Bengal.
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Affiliation(s)
- Auromeet Saha
- Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram, India
| | - K. Krishna Moorthy
- Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram, India
| | - K. Niranjan
- Department of Physics, Andhra University, Visakhapatnam, India
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8
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Johansen AM. Chemical characterization of ambient aerosol collected during the northeast monsoon season over the Arabian Sea: Anions and cations. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004111] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Crimmins BS. Particulate polycyclic aromatic hydrocarbons in the Atlantic and Indian Ocean atmospheres during the Indian Ocean Experiment and Aerosols99: Continental sources to the marine atmosphere. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004192] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Liao H. Global radiative forcing of coupled tropospheric ozone and aerosols in a unified general circulation model. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004456] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Chand D, Lal S, Naja M. Variations of ozone in the marine boundary layer over the Arabian Sea and the Indian Ocean during the 1998 and 1999 INDOEX campaigns. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001589] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Duli Chand
- Physical Research Laboratory Ahmedabad India
| | - Shyam Lal
- Physical Research Laboratory Ahmedabad India
| | - Manish Naja
- Physical Research Laboratory Ahmedabad India
- Now at Frontier Research System for Global Change, Yokohama, Japan
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12
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Kamra AK, Murugavel P, Pawar SD. Measured size distributions of aerosols over the Indian Ocean during INDOEX. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002200] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. K. Kamra
- Indian Institute of Tropical Meteorology; Pune India
| | - P. Murugavel
- Indian Institute of Tropical Meteorology; Pune India
| | - S. D. Pawar
- Indian Institute of Tropical Meteorology; Pune India
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13
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Martin RV, Jacob DJ, Yantosca RM, Chin M, Ginoux P. Global and regional decreases in tropospheric oxidants from photochemical effects of aerosols. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002622] [Citation(s) in RCA: 396] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Randall V. Martin
- Division of Engineering and Applied Sciences, and Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
| | - Daniel J. Jacob
- Division of Engineering and Applied Sciences, and Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
| | - Robert M. Yantosca
- Division of Engineering and Applied Sciences, and Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
| | - Mian Chin
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
| | - Paul Ginoux
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
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14
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Liu G. Retrieval of cloud droplet size from visible and microwave radiometric measurements during INDOEX: Implication to aerosols' indirect radiative effect. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001395] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Shetter RE. Photolysis frequency of NO2: Measurement and modeling during the International Photolysis Frequency Measurement and Modeling Intercomparison (IPMMI). ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002932] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Burkert J. Trace gas and radical diurnal behavior in the marine boundary layer during INDOEX 1999. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002790] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Saraf N. Tropospheric distribution of ozone and its precursors over the tropical Indian Ocean. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003jd003521] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Johansen AM. Chemical characterization of ambient aerosol collected during the northeast monsoon season over the Arabian Sea: Labile-Fe(II) and other trace metals. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003280] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Ball WP. Bulk and size-segregated aerosol composition observed during INDOEX 1999: Overview of meteorology and continental impacts. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002467] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Phadnis MJ, Levy H, Moxim WJ. On the evolution of pollution from South and Southeast Asia during the winter‐spring monsoon. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2002jd002190] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mahesh J. Phadnis
- Science Technology and Environmental Policy, Woodrow Wilson School of Public and International Affairs Princeton University Princeton New Jersey USA
- Now at Earth Tech, Inc., Concord, Massachusetts, USA
| | - Hiram Levy
- Geophysical Fluid Dynamics Laboratory NOAA Princeton New Jersey USA
| | - Walter J. Moxim
- Geophysical Fluid Dynamics Laboratory NOAA Princeton New Jersey USA
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21
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de Laat ATJ, Lelieveld J. Interannual variability of the Indian winter monsoon circulation and consequences for pollution levels. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001483] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. T. J. de Laat
- Utrecht University Utrecht Netherlands
- Now at Space Research Organization Netherlands (SRON), Utrecht, Netherlands
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22
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Dueñas C, Fernández MC, Cañete S, Carretero J, Liger E. Assessment of ozone variations and meteorological effects in an urban area in the Mediterranean Coast. THE SCIENCE OF THE TOTAL ENVIRONMENT 2002; 299:97-113. [PMID: 12462577 DOI: 10.1016/s0048-9697(02)00251-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Ozone concentrations are valuable indicators of possible health and environmental impacts. However, they are also used to monitor changes and trends in the sources of both ozone and its precursors. For this purpose, the influence of meteorological variables is a confusing factor. This study presents an analysis of a year of ozone concentrations measured in a coastal Spanish city. Firstly, the aim of this study was to perceive the daily, monthly and seasonal variation patterns of ozone concentrations. Diurnal cycles are presented by season and the fit of the data to a normal distribution is tested. In order to assess ozone behaviour under temperate weather conditions, local meteorological variables (wind direction and speed, temperature, relative humidity, pressure and rainfall) were monitored together with ozone concentrations. The main relationships we could observe in these analyses were then used to obtain a regression equation linking diurnal ozone concentrations in summer with meteorological parameters.
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Affiliation(s)
- C Dueñas
- Department of Applied Physics I, Faculty of Sciences, University of Málaga, Málaga, Spain.
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23
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Williams J. Near equatorial CO and O3profiles over the Indian Ocean during the winter monsoon: High O3levels in the middle troposphere and interhemispheric exchange. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001126] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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25
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26
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Gabriel R. Chemical characterization of submicron aerosol particles collected over the Indian Ocean. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2000jd000034] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Andronache C. A study of the impact of the Intertropical Convergence Zone on aerosols during INDOEX. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd900248] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Gabriel R. Bromide content of sea-salt aerosol particles collected over the Indian Ocean during INDOEX 1999. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001133] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Wagner V. Are CH2O measurements in the marine boundary layer suitable for testing the current understanding of CH4photooxidation?: A model study. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000722] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Mühle J. Air mass classification during the INDOEX R/VRonald Browncruise using measurements of nonmethane hydrocarbons, CH4, CO2, CO,14CO, and δ18O(CO). ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000730] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Dickerson RR. Analysis of black carbon and carbon monoxide observed over the Indian Ocean: Implications for emissions and photochemistry. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000501] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Crutzen PJ, Ramanathan V. Foreword [to special section on Indian Ocean Experiment (INDOEX)]. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900172] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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de Gouw JA, Warneke C, Scheeren HA, van der Veen C, Bolder M, Scheele MP, Williams J, Wong S, Lange L, Fischer H, Lelieveld J. Overview of the trace gas measurements on board the Citation aircraft during the intensive field phase of INDOEX. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900810] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Müller D, Franke K, Wagner F, Althausen D, Ansmann A, Heintzenberg J. Vertical profiling of optical and physical particle properties over the tropical Indian Ocean with six-wavelength lidar: 1. Seasonal cycle. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900784] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Liu G, Curry JA, Haggerty JA, Fu Y. Retrieval and characterization of cloud liquid water path using airborne passive microwave data during INDOEX. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900782] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Cantrell W, Shaw G, Cass GR, Chowdhury Z, Hughes LS, Prather KA, Guazzotti SA, Coffee KR. Closure between aerosol particles and cloud condensation nuclei at Kaashidhoo Climate Observatory. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900781] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Guazzotti SA, Coffee KR, Prather KA. Continuous measurements of size-resolved particle chemistry during INDOEX-Intensive Field Phase 99. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900099] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Hernández MDA, Burkert J, Reichert L, Stöbener D, Meyer-Arnek J, Burrows JP, Dickerson RR, Doddridge BG. Marine boundary layer peroxy radical chemistry during the AEROSOLS99 campaign: Measurements and analysis. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900113] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Collins WD, Rasch PJ, Eaton BE, Khattatov BV, Lamarque JF, Zender CS. Simulating aerosols using a chemical transport model with assimilation of satellite aerosol retrievals: Methodology for INDOEX. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900507] [Citation(s) in RCA: 264] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Lelieveld J, Crutzen PJ, Ramanathan V, Andreae MO, Brenninkmeijer CM, Campos T, Cass GR, Dickerson RR, Fischer H, de Gouw JA, Hansel A, Jefferson A, Kley D, de Laat AT, Lal S, Lawrence MG, Lobert JM, Mayol-Bracero OL, Mitra AP, Novakov T, Oltmans SJ, Prather KA, Reiner T, Rodhe H, Scheeren HA, Sikka D, Williams J. The Indian Ocean experiment: widespread air pollution from South and Southeast Asia. Science 2001; 291:1031-6. [PMID: 11161214 DOI: 10.1126/science.1057103] [Citation(s) in RCA: 589] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The Indian Ocean Experiment (INDOEX) was an international, multiplatform field campaign to measure long-range transport of air pollution from South and Southeast Asia toward the Indian Ocean during the dry monsoon season in January to March 1999. Surprisingly high pollution levels were observed over the entire northern Indian Ocean toward the Intertropical Convergence Zone at about 6 degrees S. We show that agricultural burning and especially biofuel use enhance carbon monoxide concentrations. Fossil fuel combustion and biomass burning cause a high aerosol loading. The growing pollution in this region gives rise to extensive air quality degradation with local, regional, and global implications, including a reduction of the oxidizing power of the atmosphere.
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Affiliation(s)
- J Lelieveld
- Max-Planck-Institute for Chemistry, Post Office Box 3060, D-55020 Mainz, Germany.
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41
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Cantrell W, Shaw G, Leck C, Granat L, Cachier H. Relationships between cloud condensation nuclei spectra and aerosol particles on a south-north transect of the Indian Ocean. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jd900219] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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42
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Rajeev K, Ramanathan V, Meywerk J. Regional aerosol distribution and its long-range transport over the Indian Ocean. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd900414] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Dickerson RR, Rhoads KP, Carsey TP, Oltmans SJ, Burrows JP, Crutzen PJ. Ozone in the remote marine boundary layer: A possible role for halogens. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900023] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Jones AE, Weller R, Minikin A, Wolff EW, Sturges WT, McIntyre HP, Leonard SR, Schrems O, Bauguitte S. Oxidized nitrogen chemistry and speciation in the Antarctic troposphere. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900362] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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de Laat ATJ, Zachariasse M, Roelofs GJ, van Velthoven P, Dickerson RR, Rhoads KP, Oltmans SJ, Lelieveld J. Tropospheric O3distribution over the Indian Ocean during spring 1995 evaluated with a chemistry-climate model. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900176] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
46
|
Lal S, Naja M, Jayaraman A. Ozone in the marine boundary layer over the tropical Indian Ocean. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jd01566] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
47
|
Jayaraman A, Lubin D, Ramachandran S, Ramanathan V, Woodbridge E, Collins WD, Zalpuri KS. Direct observations of aerosol radiative forcing over the tropical Indian Ocean during the January-February 1996 pre-INDOEX cruise. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jd00559] [Citation(s) in RCA: 153] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
48
|
Bremaud PJ, Taupin F, Thompson AM, Chaumerliac N. Ozone nighttime recovery in the marine boundary layer: Measurement and simulation of the ozone diurnal cycle at Reunion Island. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97jd01972] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|