Determination of O3, NO2, SO2, CO and PM10 measured in Belgrade urban area

Marković, Dragan; Marković, Dragan; Jovanović, Anka; Lazić, Lazar; Mijić, Zoran

doi:10.1007/s10661-007-0044-1

Cited by 58 publications

(39 citation statements)

References 19 publications

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“…Periods with higher temperature and lower humidity usually lead to higher levels of O 3 and lowers level of NO 2 in the atmosphere and vice versa. Similar changes in O 3 and NO 2 concentration levels with respect to the climatic variables have already been described in literature (Lieu et al 1987;Chan et al 2001;Martin et al 2009;Ahmad et al 2011 Atkins and Lee (1995), Wahid et al (1995aWahid et al ( , 1995b, Markovic et al (2008), and Shan et al (2009). Similar variations in NO 2 and O 3 concentration with climatic variables were observed in Spain.…”

Section: Resultssupporting

confidence: 86%

Spatial and temporal analysis of ground level ozone and nitrogen dioxide concentration across the twin cities of Pakistan

Ahmad

Aziz

2012

Environ Monit Assess

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The analyses presented in this paper include the concentration levels of NO2 and O3 measured during 2 successive years in twin cities (Rawalpindi and Islamabad) of Pakistan from November 2009 to March 2011. NO2 was determined using the passive sampling method, while ozone was determined by Model 400E ozone analyzer. The average NO2 and O3 concentration in twin cities of Pakistan was found to be 44 ± 6 and 18.2 ± 1.24 ppb, respectively. Results indicate that the concentration of NO2 and O3 show seasonal variations. Results also depict that NO2 and O3 concentration levels are high in areas of intense traffic flow and congestion. Rawalpindi has more elevated levels of NO2 and O3 as compared to the Islamabad due to the narrow roads, enclosing architecture of road network and congestion. Climatic variables also influenced the NO2 and O3 concentration, i.e., temperature is positively related with O3, while negatively related with NO2, relative humidity is directly related with NO2 and inversely related with O3, whereas rainfall show negative association with both NO2 and O3 concentration. Comparing the results with WHO standards reveals that NO2 concentration levels at all the sampling points are above the permissible limit, while ozone concentration is still lower than the WHO standards. Thus, there is a need to take appropriate steps to control these continuously increasing levels of NO2 and O3 before they become a serious hazard for the environment and people living in those areas.

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Section: Resultssupporting

confidence: 86%

Spatial and temporal analysis of ground level ozone and nitrogen dioxide concentration across the twin cities of Pakistan

Ahmad

Aziz

2012

Environ Monit Assess

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“…The correlation coefficient between relative humidity and SO 2 , NO x , and CO was also found to be negative or weak (Table S3). The comparatively similar association between SO 2 , NO x , and CO and meteorological parameters (temperature and relative humidity) was also found at other urban site (Marković et al 2008). Contrarily, O 3 followed a positive linear relationship with temperature, except in post-monsoon season while the strong negative with the relative humidity in all seasons.…”

Section: Resultssupporting

confidence: 78%

Four-year measurements of trace gases (SO2, NOx, CO, and O3) at an urban location, Kanpur, in Northern India

et al. 2014

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In this study, we present long-term near-surface measurements of sulfur dioxide (SO 2 ), oxides of nitrogen (NO x ), carbon monoxide (CO), and ozone (O 3 ) carried out at an urban location, Kanpur (26.46°N, 80.33°E, 125 m amsl), in Northern India from June 2009 to May 2013. The mean concentrations of SO 2 , NO x , CO, and O 3 over the entire study period were 3.0, 5.7, 721, and 27.9 ppb, respectively. SO 2 , NO x and CO concentrations were highest during the winter season, whereas O 3 concentration peaked during summer. The former could be attributed mainly to the near-surface anthropogenic sources (e.g. automobiles, residential cooking, brick kilns, coal-burning power plants, agricultural land-clearing, and biomass burning) and low mixing height in winter, whereas the latter was clearly due to enhanced chemical production of O 3 during the pre-monsoon (i.e. summer) season. The lowest concentration of all trace gases were observed during the monsoon season, due to efficient wet scavenging by precipitation. The averaged diurnal patterns also showed similar seasonal variation. NO x and CO showed peaks during morning and evening traffic hours and a valley in the afternoon irrespective of the seasons, clearly linked to the boundary layer height evolution. Contrarily, O 3 depicted a reverse pattern with highest concentrations during afternoon hours and lowest in the morning hours. The mean rate of change of O 3 concentrations (dO 3 /dt) during the morning hours (08:00 to 11:00 h) and evening hours (17:00 to 19:00 h) at Kanpur were 3.3 ppb h −1 and −2.6 ppb h −1 , respectively. O 3 followed a positive linear relationship with temperature, except in post-monsoon season while the strong negative with the relative humidity in all seasons. The ventilation coefficient was found to be highest in the pre-monsoon season (15,622 m 2 s −1 ) and lowest during winter (2564 m 2 s −1 ), indicative of excellent pollution dispersion efficiency during the pre-monsoon season. However, the low ventilation coefficient during winter and post-monsoon seasons indicated that the highpollution potential occurs at this site.

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“…from July to September the ozone concentration in the atmosphere decreased with increase in rate of rain fall due to dispersion and transportation of pollutants in the atmosphere leads to dilution of pollutants in the atmosphere. Similar relationship of ozone concentration levels with meteorological variables have previously been reported by Atkins and Lee (1995), Wahid et al (1995a, 1995b) Chan, So, and Samad (2001, Ghauri, Lodhi, and Mansha (2007), Markovic et al (2008), Shan et al (2009) and Martin et al (2010). Multiple regression analysis (Table 3) showed that ozone concentration is greatly influenced by the independent climatic variables i.e.…”

Section: Relationship With Meteorological Variablessupporting

confidence: 84%

Monitoring and Visualization of Tropospheric Ozone in Rural/Semi Rural Sites of Rawalpindi and Islamabad, Pakistan

Ahmad¹,

Aziz²,

Fatima³

2012

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Ozone is one of the most pervasive of the global air pollutants, with impacts on human health, food production and the environment. Present research highlights emphasized the main rural agricultural areas of Rawalpindi and Islamabad for their air quality assessment and visualization in order to evaluate and predict the risk areas to facilitate farmers and policy makers to draft critical guidelines for possible threat of ozone concentrations to the agricultural sector of country in the coming years. Model 400E ozone analyzer was used to determine the ozone concentration. Mean concentration value of O 3 recorded during the campaign is 35 ppb in Rawalpindi and Islamabad. Seasonal fluctuations in O 3 concentration levels were also observed throughout the year in different months. This can be attributed to changing climatic variables i.e. temperature, rainfall and humidity throughout the different season. Climatological parameters also showed significant association with ozone concentration.Comparison of obtained values of ozone with the WHO standards indicates that O 3 levels are still lower than standards. This indicates that we still have a time to reconsider our anthropogenic activities to control the O 3 precursors to prevent any deleterious effects on agricultural sector.

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Determination of O3, NO2, SO2, CO and PM10 measured in Belgrade urban area

Cited by 58 publications

References 19 publications

Spatial and temporal analysis of ground level ozone and nitrogen dioxide concentration across the twin cities of Pakistan

Spatial and temporal analysis of ground level ozone and nitrogen dioxide concentration across the twin cities of Pakistan

Four-year measurements of trace gases (SO2, NOx, CO, and O3) at an urban location, Kanpur, in Northern India

Monitoring and Visualization of Tropospheric Ozone in Rural/Semi Rural Sites of Rawalpindi and Islamabad, Pakistan

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