The present work focuses on the seasonal evaluation of suspended particulate matter (SPM) produce... more The present work focuses on the seasonal evaluation of suspended particulate matter (SPM) produced by Badarpur thermal power station (BTPS) within a radius of 5 km of its source. The study was carried out using both monitoring and modeling; experimental measurements were obtained from a monitoring network in and around the power station. Numerical simulations were carried out employing a Gaussian plume point source model. SPM is considered to be the main pollutant emitted by the power station. Two years (1998)(1999) of wind speed, wind direction and cloud cover data recorded by India Meteorological Department (IMD) were used for concentration computations. These computed values of particulate matter at six receptors, in and around BTPS, were used to evaluate the seasonal impact of BTPS on air quality. Comparison of numerical results with experimental data show a marked seasonal trend along the study period which is characterized by SPM levels that were higher in winter and decreased progressively through the pre-monsoon, post-monsoon and monsoon seasons.
... All rights reserved. Cited By in Scopus (31). Permissions & Reprints. Present... more ... All rights reserved. Cited By in Scopus (31). Permissions & Reprints. Present scenario of air quality in Delhi: a case study of CNG implementation. P. Goyal Corresponding Author Contact Information , E-mail The Corresponding Author and Sidhartha. ...
A study of concentrations of sulfur dioxide (SO 2 ) and suspended particulate matter (SPM) has be... more A study of concentrations of sulfur dioxide (SO 2 ) and suspended particulate matter (SPM) has been performed in Delhi. The monthly and seasonal variations of concentrations and winds are analyzed. The monthly mean SO 2 concentrations were in the range of 16.15-34.44 mg m À3 and showed regular seasonal variations with the highest concentrations in winter and lowest in monsoon season. On the other hand, the monthly mean SPM concentrations reached the highest (465.68 mg m À3 ) in November and the lowest (150.07 mg m À3 ) in August. It was observed that high SO 2 concentrations were generally associated with the wind blowing from WNW-NW directions, and the high SPM concentrations were usually related to the wind blowing from W-NW directions. r
Little attention was paid to growing air quality concerns until about a decade earlier in India. ... more Little attention was paid to growing air quality concerns until about a decade earlier in India. Indian Government started continuous monitoring of the urban air quality in Taj corridor area to protect the heritage monuments like Agra Fort, Fatehpur Sikri, the bird sanctuary at Bharatpur National Park and also the human health associated with air pollution. The aim of this study was to address air quality assessment using fuzzy synthetic evaluation model. The model was designed for four air pollutants (sulphur dioxide, nitrogen dioxide, suspended particulate matters and respirable suspended particulate matter). In the present paper, an approach is demonstrated for the determination of fuzzy air quality index by aggregating the four pollutants. The model also considers the weights of individual pollutants during aggregation. The weights of individual pollutants were determined using analytical hierarchical process. The model was applied for air quality assessment in four monitoring stations situated in Taj Trapezium Zone.
Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality heal... more Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality health index (FAQHI) for deducing health risk associated with local air pollution levels, and subjective parameters. The present work aims at determining FAQHI by considering five air pollutant parameters (SO2, NO2, O3, CO, and PM10) and three subjective parameters (population sensitivity, population density and location sensitivity). Each of the individual pollutants has varying impacts. Hence the combined health effects associated with the pollutants were estimated by aggregating the pollutants with different weights. Global weights for each evaluation alternatives were determined using fuzzy-AHP method. The developed model was applied to determine FAQHI in Howrah City, India from daily-observed concentrations of air pollutants over the three-year period between 2009 and 2011. The FAQHI values obtained through this method in Howrah City range from 1 to 3. Since the permissible value of FAQHI (as calculated for NAAQS) for residential areas is 1.78, higher index values are of public health concern to the exposed individuals. During the period of study, the observed FAQHI values were found to be higher than 1.78 in most of the day in the months of January to March, and October to December. However, the index values were below the recommended limit during rest of the months. In conclusion, FAQHI in Howrah city was above permissible limit in winter months and within acceptable values in summer and rainy months. Diurnal variations of FAQHI showed a similar trend during the three-year period of assessment.
Little attention was paid to growing air quality concerns until about a decade earlier in India. ... more Little attention was paid to growing air quality concerns until about a decade earlier in India. Indian Government started continuous monitoring of the urban air quality in Taj corridor area to protect the heritage monuments like Agra Fort, Fatehpur Sikri, the bird sanctuary at Bharatpur National Park and also the human health associated with air pollution. The aim of this study was to address air quality assessment using fuzzy synthetic evaluation model. The model was designed for four air pollutants (sulphur dioxide, nitrogen dioxide, suspended particulate matters and respirable suspended particulate matter). In the present paper, an approach is demonstrated for the determination of fuzzy air quality index by aggregating the four pollutants. The model also considers the weights of individual pollutants during aggregation. The weights of individual pollutants were determined using analytical hierarchical process. The model was applied for air quality assessment in four monitoring stations situated in Taj Trapezium Zone.
Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality heal... more Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality health index (FAQHI) for deducing health risk associated with local air pollution levels, and subjective parameters. The present work aims at determining FAQHI by considering five air pollutant parameters (SO2, NO2, O3, CO, and PM10) and three subjective parameters (population sensitivity, population density and location sensitivity). Each of the individual pollutants has varying impacts. Hence the combined health effects associated with the pollutants were estimated by aggregating the pollutants with different weights. Global weights for each evaluation alternatives were determined using fuzzy-AHP method. The developed model was applied to determine FAQHI in Howrah City, India from daily-observed concentrations of air pollutants over the three-year period between 2009 and 2011. The FAQHI values obtained through this method in Howrah City range from 1 to 3. Since the permissible value of FAQHI (as calculated for NAAQS) for residential areas is 1.78, higher index values are of public health concern to the exposed individuals. During the period of study, the observed FAQHI values were found to be higher than 1.78 in most of the day in the months of January to March, and October to December. However, the index values were below the recommended limit during rest of the months. In conclusion, FAQHI in Howrah city was above permissible limit in winter months and within acceptable values in summer and rainy months. Diurnal variations of FAQHI showed a similar trend during the three-year period of assessment.
The SO, source strengths due to coal burning in Agra have been compiled. Domestic coal has been a... more The SO, source strengths due to coal burning in Agra have been compiled. Domestic coal has been apportioned according to population over 252 grids of three sizes. A receptor-oriented Gaussian plume model has been used to calculate the SO2 concentration in the city. Modified stability parameters are used for low wind speed and calm intervals. The model performance is highly satisfactory, giving an RMSE of 1.35 for the logarithm of the ratios of 52 pairs of observed and predicted concentrations. The results indicate that any strategy for reducing SO1 emissions should consider domestic use of coal.
The present work focuses on the seasonal evaluation of suspended particulate matter (SPM) produce... more The present work focuses on the seasonal evaluation of suspended particulate matter (SPM) produced by Badarpur thermal power station (BTPS) within a radius of 5 km of its source. The study was carried out using both monitoring and modeling; experimental measurements were obtained from a monitoring network in and around the power station. Numerical simulations were carried out employing a Gaussian plume point source model. SPM is considered to be the main pollutant emitted by the power station. Two years (1998)(1999) of wind speed, wind direction and cloud cover data recorded by India Meteorological Department (IMD) were used for concentration computations. These computed values of particulate matter at six receptors, in and around BTPS, were used to evaluate the seasonal impact of BTPS on air quality. Comparison of numerical results with experimental data show a marked seasonal trend along the study period which is characterized by SPM levels that were higher in winter and decreased progressively through the pre-monsoon, post-monsoon and monsoon seasons.
... All rights reserved. Cited By in Scopus (31). Permissions & Reprints. Present... more ... All rights reserved. Cited By in Scopus (31). Permissions & Reprints. Present scenario of air quality in Delhi: a case study of CNG implementation. P. Goyal Corresponding Author Contact Information , E-mail The Corresponding Author and Sidhartha. ...
A study of concentrations of sulfur dioxide (SO 2 ) and suspended particulate matter (SPM) has be... more A study of concentrations of sulfur dioxide (SO 2 ) and suspended particulate matter (SPM) has been performed in Delhi. The monthly and seasonal variations of concentrations and winds are analyzed. The monthly mean SO 2 concentrations were in the range of 16.15-34.44 mg m À3 and showed regular seasonal variations with the highest concentrations in winter and lowest in monsoon season. On the other hand, the monthly mean SPM concentrations reached the highest (465.68 mg m À3 ) in November and the lowest (150.07 mg m À3 ) in August. It was observed that high SO 2 concentrations were generally associated with the wind blowing from WNW-NW directions, and the high SPM concentrations were usually related to the wind blowing from W-NW directions. r
Little attention was paid to growing air quality concerns until about a decade earlier in India. ... more Little attention was paid to growing air quality concerns until about a decade earlier in India. Indian Government started continuous monitoring of the urban air quality in Taj corridor area to protect the heritage monuments like Agra Fort, Fatehpur Sikri, the bird sanctuary at Bharatpur National Park and also the human health associated with air pollution. The aim of this study was to address air quality assessment using fuzzy synthetic evaluation model. The model was designed for four air pollutants (sulphur dioxide, nitrogen dioxide, suspended particulate matters and respirable suspended particulate matter). In the present paper, an approach is demonstrated for the determination of fuzzy air quality index by aggregating the four pollutants. The model also considers the weights of individual pollutants during aggregation. The weights of individual pollutants were determined using analytical hierarchical process. The model was applied for air quality assessment in four monitoring stations situated in Taj Trapezium Zone.
Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality heal... more Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality health index (FAQHI) for deducing health risk associated with local air pollution levels, and subjective parameters. The present work aims at determining FAQHI by considering five air pollutant parameters (SO2, NO2, O3, CO, and PM10) and three subjective parameters (population sensitivity, population density and location sensitivity). Each of the individual pollutants has varying impacts. Hence the combined health effects associated with the pollutants were estimated by aggregating the pollutants with different weights. Global weights for each evaluation alternatives were determined using fuzzy-AHP method. The developed model was applied to determine FAQHI in Howrah City, India from daily-observed concentrations of air pollutants over the three-year period between 2009 and 2011. The FAQHI values obtained through this method in Howrah City range from 1 to 3. Since the permissible value of FAQHI (as calculated for NAAQS) for residential areas is 1.78, higher index values are of public health concern to the exposed individuals. During the period of study, the observed FAQHI values were found to be higher than 1.78 in most of the day in the months of January to March, and October to December. However, the index values were below the recommended limit during rest of the months. In conclusion, FAQHI in Howrah city was above permissible limit in winter months and within acceptable values in summer and rainy months. Diurnal variations of FAQHI showed a similar trend during the three-year period of assessment.
Little attention was paid to growing air quality concerns until about a decade earlier in India. ... more Little attention was paid to growing air quality concerns until about a decade earlier in India. Indian Government started continuous monitoring of the urban air quality in Taj corridor area to protect the heritage monuments like Agra Fort, Fatehpur Sikri, the bird sanctuary at Bharatpur National Park and also the human health associated with air pollution. The aim of this study was to address air quality assessment using fuzzy synthetic evaluation model. The model was designed for four air pollutants (sulphur dioxide, nitrogen dioxide, suspended particulate matters and respirable suspended particulate matter). In the present paper, an approach is demonstrated for the determination of fuzzy air quality index by aggregating the four pollutants. The model also considers the weights of individual pollutants during aggregation. The weights of individual pollutants were determined using analytical hierarchical process. The model was applied for air quality assessment in four monitoring stations situated in Taj Trapezium Zone.
Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality heal... more Fuzzy-analytical hierarchical process (F-AHP) can be extended to determine fuzzy air quality health index (FAQHI) for deducing health risk associated with local air pollution levels, and subjective parameters. The present work aims at determining FAQHI by considering five air pollutant parameters (SO2, NO2, O3, CO, and PM10) and three subjective parameters (population sensitivity, population density and location sensitivity). Each of the individual pollutants has varying impacts. Hence the combined health effects associated with the pollutants were estimated by aggregating the pollutants with different weights. Global weights for each evaluation alternatives were determined using fuzzy-AHP method. The developed model was applied to determine FAQHI in Howrah City, India from daily-observed concentrations of air pollutants over the three-year period between 2009 and 2011. The FAQHI values obtained through this method in Howrah City range from 1 to 3. Since the permissible value of FAQHI (as calculated for NAAQS) for residential areas is 1.78, higher index values are of public health concern to the exposed individuals. During the period of study, the observed FAQHI values were found to be higher than 1.78 in most of the day in the months of January to March, and October to December. However, the index values were below the recommended limit during rest of the months. In conclusion, FAQHI in Howrah city was above permissible limit in winter months and within acceptable values in summer and rainy months. Diurnal variations of FAQHI showed a similar trend during the three-year period of assessment.
The SO, source strengths due to coal burning in Agra have been compiled. Domestic coal has been a... more The SO, source strengths due to coal burning in Agra have been compiled. Domestic coal has been apportioned according to population over 252 grids of three sizes. A receptor-oriented Gaussian plume model has been used to calculate the SO2 concentration in the city. Modified stability parameters are used for low wind speed and calm intervals. The model performance is highly satisfactory, giving an RMSE of 1.35 for the logarithm of the ratios of 52 pairs of observed and predicted concentrations. The results indicate that any strategy for reducing SO1 emissions should consider domestic use of coal.
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