Spatial Variation of Ground Level Ozone Concentrations and its Health Impacts in an Urban Area in India

Gorai, Amit Kumar; Tchounwou, Paul B.; Mitra, Gargi

doi:10.4209/aaqr.2016.08.0374

Cited by 34 publications

(27 citation statements)

References 27 publications

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“…These results are consistent with the research of Gorai et al [69], who found that temporal changes in tropospheric ozone concentrations clearly indicate a general 24-h cycle, with the maximum concentration noted from late morning to mid-afternoon and the minimum during the night and in the early morning. This corresponds to the daily course of air temperature.…”

Section: Resultssupporting

confidence: 93%

“…The The results of the study are in agreement with those reported by Parrish et al [67], who found higher levels of tropospheric ozone in spring and summer than in autumn and winter. The effect of climatic conditions on O 3 concentrations is widely discussed in the literature [67][68][69][70]. According to De Nevers [71], Paudsainee et al [72], Khoder [73], and Langner et al [74], the intensive solar radiation, high temperature, and high relative humidity in summer contribute to high O 3 concentrations.…”

Section: Resultsmentioning

confidence: 99%

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Temporal Variability of Tropospheric Ozone Pollution in the Agricultural Region of Central-Eastern Poland

Skowera

Zuśka

Zarzecka³

2020

Sustainability

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The aim of the study was to assess the temporal variability of tropospheric ozone pollution. The research was carried out for the agricultural region of central-eastern Poland, an area covering the Lublin Voivodeship. One-hour averages of automatic measurements of tropospheric ozone concentration in 2015–2017 were used for the study. The data were obtained from three measuring stations belonging to the Chief Inspectorate of Environmental Protection in Poland. The stations were located as part of the Air Quality Monitoring System in rural communes in the north-western, central and southern parts of the Lublin Voivodeship. Statistical analysis of the data showed that the tropospheric ozone concentrations were significantly dependent on weather conditions during the years of the study. At each monitoring station, the one-hour average O3 concentrations showed a clear structure over the course of the day: they were higher in the late morning and early afternoon than in the early morning and at night. The highest O3 concentrations were observed at the Florianka measurement station, located in Roztocze National Park. This area had high forest cover and was located at the highest elevation above sea level of the three measuring stations. In the light of climate change and increasing O3 concentrations, further scientific research on atmospheric air pollution is crucial, especially in agricultural areas associated with food production.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Temporal Variability of Tropospheric Ozone Pollution in the Agricultural Region of Central-Eastern Poland

Skowera

Zuśka

Zarzecka³

2020

Sustainability

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“…Urban air pollution is a major ecological threat in most developing countries (Gorai et al, 2017). The consistent rise in greenhouse gas emissions is also intensifying and therefore affects the earth's climate system (Nsubuga et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Reviewing the local and global implications of air pollution trends in Zaria, northern Nigeria

Aliyu

Botai

2018

Urban Climate

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Highlights• Pioneer outdoor air pollution time-series data for a Nigerian city • Validates MSA Altair 5× gas detector and CW-HAT200 particulate counter.• Alarming outdoor pollution measurements • A candidate into the list of World's most polluted cities is revealed. AbstractAir pollution is an unnoticed problem in many Nigerian urban cities. This is mainly attributed to the usage of power generating sets, indiscriminate refuse burning, biomass consumption and import/recycle of timeworn automobiles, which dominates the Nigerian automobile fleet. Reduced economic infrastructure and the Nigerian climate, are a major factor for the dense outdoor population activities. This is contributing to the increasing population health risk resulting from pollution exposure. Literature on the seasonal spatial-temporal distribution of air pollutants within Nigerian urban cities is presently scanty. This study evaluates the local and global implications of air pollution trends in northern Nigeria's educational hub. The study utilized validated costeffective devices (MSA Altair 5x gas detector and the CW-HAT200 particulate counter) to assess the outdoor air quality in Zaria. The findings revealed the one-year day-time weighted average concentration level for CO, SO2 PM2.5 and PM10 as 29.22 ppm, 0.32 ppm, 219.73 and 451.96 µgm -3 respectively. These concentration levels were above the locally and globally stipulated air quality indices. In particular, the concentration levels of the particulate matter pollutants (PM2.5 and PM10) were high enough to place Zaria amongst the World Health Organization's list of polluted cities. We are optimistic that our findings would instigate Nigerian policy makers to take decisive steps for air quality management across its cities.

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“…During CCT, NO 2 was used up for the O 3 formation. CCP occurred when photochemical reaction rate started to surpass NO x titration rate and it was represented by the interception point between O 3 and NO 2 concentration on the plot [10], [11], [19]- [21]. The O 3 uni-modal peaks usually after CCT approximately between 12.00 p.m. to 4.00 p.m.…”

Section: B Diurnal Variationsmentioning

confidence: 99%

Trends of Transformation Characteristics of Ground-Level Ozone in Urban Peninsular Malaysia

2019

IJRTE

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Ozone (O3 ) is the second prominent air pollution in Malaysia. The annual variation of ozone concentration depends upon several conditions such as the sources of its precursor, the land use type and meteorological parameter. This study aims to understand the trends and issues of transformation characteristics of O3 in 4 urban area (Shah Alam, Kajang, Johor Bahru and Kota Bharu) during specific critical conversion time (CCT) as well as to introduce the critical transformation time (CTT) of O3 in 4 selected continuous air quality monitoring stations (CAQMS) from the year 2000 to 2011. The identification of CTT for O3 formation was identified occurring between 8.00 a.m and 11.00 a.m., and the O3 uni-modal peaks usually after CTT at approximately between 12.00 p.m and 4.00 p.m. The results indicated that the CTT of O3 in the Kota Bharu is slightly earlier occurring between 8.00 a.m to 10.00 a.m whereas Shah Alam, Kajang and Johor Bahru the CTT later occurring between 10.00 a.m to 11.00 a.m. Only Kota Bharu recorded data was below 100 part per billion volume (ppbv), while Shah Alam, Kajang and Johor have recorded exceedances above 100 ppbv. This research elucidates that CTT is adequate to control ozone concentration. Ozone might exceed Recommended Ambient Air Quality Guideline (RMAAQC) unless nitrogen emissions are adequately managed, due to the detrimental effects for those who are at risk of respiratory health problems resulting from air pollution.

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Spatial Variation of Ground Level Ozone Concentrations and its Health Impacts in an Urban Area in India

Cited by 34 publications

References 27 publications

Temporal Variability of Tropospheric Ozone Pollution in the Agricultural Region of Central-Eastern Poland

Temporal Variability of Tropospheric Ozone Pollution in the Agricultural Region of Central-Eastern Poland

Reviewing the local and global implications of air pollution trends in Zaria, northern Nigeria

Trends of Transformation Characteristics of Ground-Level Ozone in Urban Peninsular Malaysia

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