Changes in Vegetation Characteristics Downwind of an Aluminium Factory in India

Narayan, Deo; Agrawal, Madhoolika; Pandey, Jitendra; Singh, Jaya

doi:10.1006/anbo.1994.1069

Cited by 26 publications

(10 citation statements)

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“…The decrease in the diversity indices clearly demonstrate unstability of vegetation under monocultures since the stability of any community/population is directly dependent on the diversity. Higher the value of diversity, greater will be the stability of community (Narayan et al, 1994). Trends observed in the cases: of species richness and: evenness indices show that vegetation community under mixculture is highly stable compared to monocultures.…”

Section: Discussionmentioning

confidence: 82%

Status of Floor Vegetation under Some Monoculture and Mixculture Plantations in North India

Kohli

Singh

Rani

1996

Journal of Forest Research

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A study conducted to assess the floor vegetation shows the presence of 17 species under Populus deltoides in comparison to 28, 29 and 35 underAlbizia lebbeck, Dalbergia sissoo and mix-culture plantations, respectively. Further, the biomass and density of floor vegetation is considerably reduced under P. deltoides compared to other plantations. In addition, the indices for species richness, evenness, dominance and diversity are also reduced under P. deltoides showing some inhibitory mechanism being operative under these plantations. Based on available literature, allelopathy is speculated to be responsible for this reduction.

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Section: Discussionmentioning

confidence: 82%

Status of Floor Vegetation under Some Monoculture and Mixculture Plantations in North India

Kohli

Singh

Rani

1996

Journal of Forest Research

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“…Fugitive dust and stack emissions especially during charging and discharging of rock mills are the main sources of particulate emissions. This rate of deposition is considered very heavy compared to Pennsylvania guidelines for dust fall [24], moreover, these rates of deposition exceed in terrible amount of standards for dust Table 2. Sites no 2, 3 showed the vigorous increase of dust fall than other sites and exceeding other sites the alert limit to take action of 72 g/m 2 ·month to immediate action and remediation required following the first incidence of dust fall rate being exceeded.…”

Section: Determination Of Dust Fallmentioning

confidence: 97%

A Study of Heavy Metals in the Dust Fall around Assiut Fertilizer Plant

Mohamed¹,

Mohamed²,

Rabeiy³

et al. 2013

JEP

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A study of an environmental assessment of dust fall and the associated heavy metal contents was conducted during the period from the first of March 2011 to the end of February 2012 at adjoining area of a phosphate fertilizer plant. Around the industrial area 8 dust fall stations were established and one of them was built upwind far from pollution activities to be taken as a control sample. Dust fall samples collected monthly weighed and then prepared to be analyzed through Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) to obtain heavy metal concentration. Meteorological parameters influencing the distribution of dust fall such as wind speed and direction, temperature, humidity, rain fall and pressure were determined. Results showed that deposition flow rates were 38.2. 47.5, 57.7, 44.3, 39.4, 38.2, 42.7 and 5.9 g/m 2 ·month for the sites No., 1, 2, 3, 4, 5, 6, 7 and 8 respectively, and were compared with the findings of other investigators of like industrial areas worldwide. Levels of heavy metal As, Cu, Pb, Zn, Cd, and Hg in the deposited dust fall were 3. 30, 26.46, 22.33, 235.00, 4.53 and 3.80 µg/g respectively. Enrichment coefficients of the heavy metals in the dust fall were found to be significant and reached the values 1. 81, 0.90, 0.85, 0.65, 0.41 and 0.35 for zinc, lead, cadmium, copper, mercury and arsenic respectively. The paper ends with results and recommendations suggesting a methodology to remediate the investigated area polluted with heavy metals and control measures for the fertilizer plant to reduce pollution into the surrounding environment.

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“…HF concentrations were monitored by absorbing air into an aqueous solution of 0.1N NaOH, which was later analysed through a selective fluoride ion electrode (Narayan et al, 1994). Sulphur dioxide was scrubbed through impingers containing tetrachloromercurate and analysed colorimetrically (West and Gaeke, 1956).…”

Section: Air Quality Monitoringmentioning

confidence: 99%

“…There exist, however, classes of problems associated with the heterogeneity of the plant material and variations in environmental conditions, and it often becomes difficult to determine unequivocally which environmental factor(s) are the most important in controlling the plant responses. Of the many factors, edaphic (Farley and Fitter, 1999) and biotic (Narayan et al, 1994) controls have particular significance. Transplant studies, in which uniformally sized seedlings of same age group are planted in identical pots and watered identically, offer a more direct approach.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of air pollution phytotoxicity downwind of a phosphate fertilizer factory in India

Pandey

2005

Environ Monit Assess

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The effects of air pollution on plants downwind of a fertilizer factory at Udaipur, India, were studied using three woody perennials. Seedlings of these species including a shrub (Carissa carandas L.), a leguminous avenue tree (Cassia fistula L.) and a fruit tree (Psidium guajava L.) were grown in earthen pots at different study sites receiving varying levels of air pollution input. Changes in plant growth, morphological characteristics, photosynthetic pigment, ascorbic acid, N and S contents and in dry matter allocation were considered in relation to the status of ambient air quality. Observations with these parameters have indicated that the ambient air around the factory contained pollutants at phytotoxic levels. Plant height, basal diameter, conopy area, leaf area and chlorophyll, ascorbic acid and foliar-N concentrations decreased with increasing pollution load. However, foliar-S increased slightly at polluted sites. Air pollution load around the factory have also altered the biomass allocation. Root:shoot ratios increased in C. fistula and P. guajava at polluted sites. In contrast, for C. carandas the above ground parts, where foliage assumed predominance showed precedence over the root growth. This species responded characteristically to air pollution stress by allocating more of its photosynthate towards leaf production and shoot growth.

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Changes in Vegetation Characteristics Downwind of an Aluminium Factory in India

Cited by 26 publications

References 0 publications

Status of Floor Vegetation under Some Monoculture and Mixculture Plantations in North India

Status of Floor Vegetation under Some Monoculture and Mixculture Plantations in North India

A Study of Heavy Metals in the Dust Fall around Assiut Fertilizer Plant

Evaluation of air pollution phytotoxicity downwind of a phosphate fertilizer factory in India

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