Effect of power plant emissions on plant community structure

Singh, Jaya; Agrawal, Madhoolika; Narayan, Deo

doi:10.1007/bf00143409

Cited by 10 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Deposition rate was highest during summer and lowest during rainy season. Dust fall rate was also lower during the present study, as compared to that reported by Agrawal and Singh [29] and Singh et al [36]; the values were 2.28 and 3.06 g m 2 day 1 during present and earlier recordings, respectively. During the early to midsummer season, the atmospheric conditions remained unstable due to convection and therefore particulate matter from sources and soil origin were lifted up.…”

Section: Discussionsupporting

confidence: 59%

“…TSP concentration and dust fall rate were higher during summer, whereas SO 2 and NO 2 concentrations were highest during winter and all of them were lowest during rainy season. Agrawal and Singh [19] and Singh et al [36] have also reported a similar seasonal pattern of gaseous and particulate pollutants in the area. The mean seasonal TSP concentration during the summer and winter seasons were higher than the acceptable limit set by Central Pollution Control Board (CPCB) India at site 3 only.…”

Section: Discussionmentioning

confidence: 52%

See 1 more Smart Citation

Characterization of Wet and Dry Deposition in the Downwind of Industrial Sources in a Dry Tropical Area

Singh

Agrawal

2001

The Scientific World JOURNAL

View full text Add to dashboard Cite

An atmospheric deposition study was conducted in the downwind of Shaktinagar Thermal Power Plant (STPP), Renusagar Thermal Power Plant (RTPP), and Anpara Thermal Power Plant (ATPP), at Singrauli region, Uttar Pradesh (UP), India to characterize dry and wet deposition in relation to different pollution loading. During the study period, dry and wet depositions and levels of gaseous pollutants (SO2 and NO2) were estimated across the sites. Dry deposition was collected on a monthly basis and wet deposition on an event basis. Depositions were analyzed for pH, nitrate (NO3-), ammonium (NH4+), and sulphate (SO4(2-)) contents. Dry deposition rate both collected as clearfall and throughfall varied between 0.15 to 2.28 and 0.33 to 3.48 g m(-2) day(-1), respectively, at control and maximally polluted sites. The pH of dry deposition varied from 5.81 to 6.89 during winter and 6.09 to 7.02 during summer across the sites. During the rainy season, the mean pH of clear wet deposition varied from 6.56 to 7.04 and throughfall varied from 6.81 to 7.22. The concentrations of NO2 and SO2 pollutants were highest during the winter season. Mean SO2 concentrations varied from 18 to 75 g m(-3) at control and differently polluted sites during the winter season. The variation in NO2 concentrations did not show a pattern similar to that of SO2. The highest NO2 concentration during the winter season was 50 g m(-3), observed near RTPP. NO2 concentration did not show much variation among different sites, suggesting that the sources of NO2 emission are evenly distributed along the sites. The concentrations of NH4+, NO3-, and SO4(2-) ions in dry deposition were found to be higher in summer as compared to the winter season. In dry deposition (clearfall) the concentrations of NH4+, NO3-, and SO4(2-) varied from 0.13 to 1.0, 0.81 to 1.95, and 0.82 to 3.27 mg l(-1), respectively, during winter. In wet deposition (clearfall), the above varied from 0.14 to 0.74, 0.81 to 1.82, and 0.67 to 2.70 mg l(-1), respectively. The study clearly showed that both dry and wet depositions varied between the sites and season, suggesting significant impact of industrial activities in modifying the atmospheric input. The nonacidic deposition suggests that there is no threat of acidification of the receiving ecosystem at present.

show abstract

Section: Discussionsupporting

confidence: 59%

Section: Discussionmentioning

confidence: 52%

Characterization of Wet and Dry Deposition in the Downwind of Industrial Sources in a Dry Tropical Area

Singh

Agrawal

2001

The Scientific World JOURNAL

View full text Add to dashboard Cite

show abstract

“…One study (Preston, 1988) reported approximations based on polynomial regression models, whereas we always use linear correlation (see below). We disregarded the changes in plant communities around the power plant in Shaktinagar explored by Singh et al . (1994), because most of study plots were located between two power plants, and therefore the individual effect of the polluter could not be quantified.…”

Section: Methodsmentioning

confidence: 99%

Changes in species richness of vascular plants under the impact of air pollution: a global perspective

Zvereva

Toivonen

Kozlov

2007

Global Ecology and Biogeography

View full text Add to dashboard Cite

Aim To investigate the general pattern of changes in species richness and diversity of vascular plants due to environmental contamination and associated habitat changes imposed by point polluters, and identify the sources of variation in the response of plant communities to industrial pollution.Location Global. MethodsWe collected species richness and diversity data from 86 studies that were conducted around 60 atmospheric point polluters worldwide and reported in 95 papers (published in 1953-2007). We used meta-analysis to search for a general effect and to compare between polluter types and plant groups, and linear regression to describe the latitudinal gradient and to quantify relationships between pollution and effect size. ResultsAlthough the species richness of vascular plants generally decreased with pollution, the effects were not uniform across the studies. Polluters that cause soil acidification imposed a stronger detrimental effect on plant diversity than industries whose emissions increased soil pH. An overall adverse effect was primarily due to the contribution of non-ferrous smelters and aluminium plants; the effects of other SO 2 -emitting industries were less detrimental, albeit negative, and the effects of chemical plants, fertilizer factories and cement industries did not differ from zero. Longevity of the pollution impact only made a slight contribution to the detected variation, while adverse effects increased with increase in pollution load. Main conclusionsThis study is the first demonstration of geographical variation in the responses of plant communities to aerial emissions: adverse effects increased from high to low latitudes, and this pattern was explained primarily by increases in both the diversity of original (undisturbed) communities and mean summer temperatures. The latter result suggests that under a future warmer climate the existing pollution loads may become more harmful. Model calculations indicate that a detectable depauperation of plant communities is unlikely if the polluter emits < 1500 t of SO 2 annually.

show abstract

“…Recent reports have shown deterioration in air quality around thermal power plants in India [9,10]. As a result destabilization of the ecosystem has occurred with loss of several sensitive plant species [10].…”

Section: Introductionmentioning

confidence: 99%

Biodiversity, bioaccumulation and physiological changes in lichens growing in the vicinity of coal-based thermal power plant of Raebareli district, north India

Bajpai

Upreti

Nayaka

et al. 2010

Journal of Hazardous Materials

View full text Add to dashboard Cite

Effect of power plant emissions on plant community structure

Cited by 10 publications

References 21 publications

Characterization of Wet and Dry Deposition in the Downwind of Industrial Sources in a Dry Tropical Area

Characterization of Wet and Dry Deposition in the Downwind of Industrial Sources in a Dry Tropical Area

Changes in species richness of vascular plants under the impact of air pollution: a global perspective

Biodiversity, bioaccumulation and physiological changes in lichens growing in the vicinity of coal-based thermal power plant of Raebareli district, north India

Contact Info

Product

Resources

About