Bharti Tyagi - Academia.edu (original) (raw)
Papers by Bharti Tyagi
Environment conservation journal, Jun 18, 2014
In the present research work, the Canadian Council of Ministers of the Environment water quality ... more In the present research work, the Canadian Council of Ministers of the Environment water quality index 1.0 (CCME WQI 1.0) was applied to assess water quality of Tehri dam reservoir by using the drinking water standard prescribed by the WHO (1999) and BIS (IS:10500, 1991). The physico-chemical parameters, ions concentration and heavy metals concentration used in the index calculation were total dissolved solids, pH, alkalinity, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total hardness, calcium, chloride, phosphate, sulphate, nitrate, total coliform (MPN/100 ml), turbidity, zinc, manganese, lead, nickel, iron and chromium. It was observed during the course of study that at all the four sites BOD, phosphate and total coliform showed greater deviation from the objective values. Total coliform was found to be more deviated from the normal values. Few important parameters were observed beyond the permissible limit for many times. The values of water quality index have shown that most of the sites are not fit for drinking purpose. Finally it was concluded that reservoir water should not be consumed for drinking purposes frequently without proper treatment.
Determination of water quality index for the evaluation of surface water quality for drinking pur... more Determination of water quality index for the evaluation of surface water quality for drinking purpose
Global Journal of Environmental Science and Management, 2015
Although water and land pollution are very dangerous, air pollution has its own peculiarities due... more Although water and land pollution are very dangerous, air pollution has its own peculiarities due to its transboundary dispersion of pollutants over the entire world. In any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. In the present study, Air pollution tolerance index was calculated for various plant species growing at two sites Nagal village at Sahastradhara Road and the Clock Tower (the experimental site) of Dehradun city, India. The leaf samples were collected from 7 commonly present tree species. The results showed significant effects of various air pollutants on the vegetation in terms of four biochemical parameters analysed. Four physiological and biochemical parameters, which are leaf relative water content, Ascorbic acid content, total leaf chlorophyll content and leaf extract pH were used to compute the air pollution tolerance index values. Statistically significant dif...
The aim of this study was to assess the environmental impact of socio-cultural practices on the w... more The aim of this study was to assess the environmental impact of socio-cultural practices on the water quality of River Ganga at the foothills of the Garhwal Himalayas in Uttarakhand State, India. The physico-chemical parameters that contributed to the temporal variation and pollution in the river were identified in this study. Principal component analysis (PCA) and Cluster analysis (CA) were used in the identification of anthropogenic factors (industrial, urban sewage, agricultural, land use and mining activities) and natural factors (soil erosion, weathering). The results of this study show that total coliform, fecal coliform, nitrate, sodium, phosphate, sulphate, TDS (Total dissolved solids), temperature, BOD (Biochemical oxygen demand), calcium and chloride are parameters significantly contributing to pollution load.
Environmental Conservation
In the present study the water quality of Ganga River was assessed during Maha Kumbh-2010. River ... more In the present study the water quality of Ganga River was assessed during Maha Kumbh-2010. River water samples were collected from five sites. Various Physico-Chemical and microbiological parameters were analysed. It was observed that all parameters were within the permissible limit according to WHO (2009) and BIS (2004) except most probable number that is the indication of low sanitary condition and it can further lead to the outbreak of diseases. During this mass bathing two sites were found to be more affected than the other three sites. These were noted to Har-ki-pauri and Mayapur ghat at Haridwar, at these sites parameters are observed to be slightly raised in comparison to other three sites.
International Journal of Engineering Science
Water quality was determined at four sites at a st retch of 5 Km of the river Ganga in Haridwar c... more Water quality was determined at four sites at a st retch of 5 Km of the river Ganga in Haridwar city (Site 1 Harkipauri, Site 2nd Birla ghat, Site 3rd s Mayapu r and Site 4th Singhdwar) for a period of 1 year (January 2009 to December 2009). Relatively low val ues of turbidity, COD, total alkalinity and total h ardness were recorded at Site 1 and Site 3 and site 4 as co mpared to Site 2. On the basis of water quality sta ndards given by Central Pollution Control Board, the water quali ty at all the four sites was found to be in categor y A-C. The mean values of these parameters were compared with WHO and ISI standards. For computation of water qua lity rating and water quality index, thirteen parameters were considered. The water quality index at statio ns Site1, Site 2, Site 3 and Site 4 was 64.80, 57.29, 59.09 a nd 59.22 respectively.
Environment …, 2010
In the present research work an approach to assess the water quality status of Tons river at Dehr... more In the present research work an approach to assess the water quality status of Tons river at Dehradun (Uttarakhand) has been done during Jan 2008 to June 2008. The Tons is the largest tributary of the Yamuna and flows through Garhwal region in Uttarakhand, ...
Although water and land pollution are very dangerous, air pollution has its own peculiarities due... more Although water and land pollution are very dangerous, air pollution has its own peculiarities due to its transboundary dispersion of pollutants over the entire world. In any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. In the present study, Air pollution tolerance index was calculated for various plant species growing at two sites Nagal village at Sahastradhara Road and the Clock Tower (the experimental site) of Dehradun city, India. The leaf samples were collected from 7 commonly present tree species. The results showed significant effects of various air pollutants on the vegetation in terms of four biochemical parameters analysed. Four physiological and biochemical parameters, which are leaf relative water content, Ascorbic acid content, total leaf chlorophyll content and leaf extract pH were used to compute the air pollution tolerance index values. Statistically significant difference was observed between control and experimental group for Ascorbic acid, t(6)=-4.848,p=.003. Paired t test for air pollution tolerance index between the two groups showed a statistically significant difference, t (6) = -4.548, p=.004. On the basis of air pollution tolerance index values for above mentioned seven tree species, Eucalyptus globus exhibited the highest degree of tolerance at all the sites followed by Ficus religiosa > Mangifera indica > Polyalthia longifolia > Phyllanthus emblica > Citrus limon > Lantana camara.
Environment conservation journal, Jun 18, 2014
In the present research work, the Canadian Council of Ministers of the Environment water quality ... more In the present research work, the Canadian Council of Ministers of the Environment water quality index 1.0 (CCME WQI 1.0) was applied to assess water quality of Tehri dam reservoir by using the drinking water standard prescribed by the WHO (1999) and BIS (IS:10500, 1991). The physico-chemical parameters, ions concentration and heavy metals concentration used in the index calculation were total dissolved solids, pH, alkalinity, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total hardness, calcium, chloride, phosphate, sulphate, nitrate, total coliform (MPN/100 ml), turbidity, zinc, manganese, lead, nickel, iron and chromium. It was observed during the course of study that at all the four sites BOD, phosphate and total coliform showed greater deviation from the objective values. Total coliform was found to be more deviated from the normal values. Few important parameters were observed beyond the permissible limit for many times. The values of water quality index have shown that most of the sites are not fit for drinking purpose. Finally it was concluded that reservoir water should not be consumed for drinking purposes frequently without proper treatment.
Determination of water quality index for the evaluation of surface water quality for drinking pur... more Determination of water quality index for the evaluation of surface water quality for drinking purpose
Global Journal of Environmental Science and Management, 2015
Although water and land pollution are very dangerous, air pollution has its own peculiarities due... more Although water and land pollution are very dangerous, air pollution has its own peculiarities due to its transboundary dispersion of pollutants over the entire world. In any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. In the present study, Air pollution tolerance index was calculated for various plant species growing at two sites Nagal village at Sahastradhara Road and the Clock Tower (the experimental site) of Dehradun city, India. The leaf samples were collected from 7 commonly present tree species. The results showed significant effects of various air pollutants on the vegetation in terms of four biochemical parameters analysed. Four physiological and biochemical parameters, which are leaf relative water content, Ascorbic acid content, total leaf chlorophyll content and leaf extract pH were used to compute the air pollution tolerance index values. Statistically significant dif...
The aim of this study was to assess the environmental impact of socio-cultural practices on the w... more The aim of this study was to assess the environmental impact of socio-cultural practices on the water quality of River Ganga at the foothills of the Garhwal Himalayas in Uttarakhand State, India. The physico-chemical parameters that contributed to the temporal variation and pollution in the river were identified in this study. Principal component analysis (PCA) and Cluster analysis (CA) were used in the identification of anthropogenic factors (industrial, urban sewage, agricultural, land use and mining activities) and natural factors (soil erosion, weathering). The results of this study show that total coliform, fecal coliform, nitrate, sodium, phosphate, sulphate, TDS (Total dissolved solids), temperature, BOD (Biochemical oxygen demand), calcium and chloride are parameters significantly contributing to pollution load.
Environmental Conservation
In the present study the water quality of Ganga River was assessed during Maha Kumbh-2010. River ... more In the present study the water quality of Ganga River was assessed during Maha Kumbh-2010. River water samples were collected from five sites. Various Physico-Chemical and microbiological parameters were analysed. It was observed that all parameters were within the permissible limit according to WHO (2009) and BIS (2004) except most probable number that is the indication of low sanitary condition and it can further lead to the outbreak of diseases. During this mass bathing two sites were found to be more affected than the other three sites. These were noted to Har-ki-pauri and Mayapur ghat at Haridwar, at these sites parameters are observed to be slightly raised in comparison to other three sites.
International Journal of Engineering Science
Water quality was determined at four sites at a st retch of 5 Km of the river Ganga in Haridwar c... more Water quality was determined at four sites at a st retch of 5 Km of the river Ganga in Haridwar city (Site 1 Harkipauri, Site 2nd Birla ghat, Site 3rd s Mayapu r and Site 4th Singhdwar) for a period of 1 year (January 2009 to December 2009). Relatively low val ues of turbidity, COD, total alkalinity and total h ardness were recorded at Site 1 and Site 3 and site 4 as co mpared to Site 2. On the basis of water quality sta ndards given by Central Pollution Control Board, the water quali ty at all the four sites was found to be in categor y A-C. The mean values of these parameters were compared with WHO and ISI standards. For computation of water qua lity rating and water quality index, thirteen parameters were considered. The water quality index at statio ns Site1, Site 2, Site 3 and Site 4 was 64.80, 57.29, 59.09 a nd 59.22 respectively.
Environment …, 2010
In the present research work an approach to assess the water quality status of Tons river at Dehr... more In the present research work an approach to assess the water quality status of Tons river at Dehradun (Uttarakhand) has been done during Jan 2008 to June 2008. The Tons is the largest tributary of the Yamuna and flows through Garhwal region in Uttarakhand, ...
Although water and land pollution are very dangerous, air pollution has its own peculiarities due... more Although water and land pollution are very dangerous, air pollution has its own peculiarities due to its transboundary dispersion of pollutants over the entire world. In any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. In the present study, Air pollution tolerance index was calculated for various plant species growing at two sites Nagal village at Sahastradhara Road and the Clock Tower (the experimental site) of Dehradun city, India. The leaf samples were collected from 7 commonly present tree species. The results showed significant effects of various air pollutants on the vegetation in terms of four biochemical parameters analysed. Four physiological and biochemical parameters, which are leaf relative water content, Ascorbic acid content, total leaf chlorophyll content and leaf extract pH were used to compute the air pollution tolerance index values. Statistically significant difference was observed between control and experimental group for Ascorbic acid, t(6)=-4.848,p=.003. Paired t test for air pollution tolerance index between the two groups showed a statistically significant difference, t (6) = -4.548, p=.004. On the basis of air pollution tolerance index values for above mentioned seven tree species, Eucalyptus globus exhibited the highest degree of tolerance at all the sites followed by Ficus religiosa > Mangifera indica > Polyalthia longifolia > Phyllanthus emblica > Citrus limon > Lantana camara.