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Wyszukujesz frazę "Mukhopadhyay, P." wg kryterium: Wszystkie pola


Wyświetlanie 1-2 z 2
Tytuł:
Assessment of morphological damages of leaves of selected plant species due to vehicular air pollution, Kolkata, India
Autorzy:
Nandy, A.
Talapatra, S.N.
Bhattacharjee, P.
Chaudhuri, P.
Mukhopadhyay, A.
Powiązania:
https://bibliotekanauki.pl/articles/10892.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
assessment
morphological damage
leaf
plant species
Ficus bengalensis
Ficus religiosa
Alstonia scholaris
Neolamarckia cadamba
vehicular traffic
air pollution
biomonitoring
India
Opis:
The present study deals to know morphological damages of leaves of four selected plant species near roadside due to vehicular air pollution in Kolkata, India. The selected plant species are Ficus bengalensis, Ficus religiosa, Alstonia scholaris and Neolamarckia cadamba as these are very common as avenue trees. The study area was selected as per Low vehicular load (LVL) as control area, moderate vehicular load (MVL) area, high vehicular load (HVL) area and heavy vehicular load (HeVL) These three sampling stations were selected on the basis of moderate, high and heavy traffic density and continuous vehicular movement as per visualization. The control area was considered as time dependent vehicular movement due to less traffic density. The morphological damages with special reference to length (L), breadth (B) and L/B ratio and visible injuries in leaves. The visible injuries such as pigmentation, chlorosis, necrosis and burning of leaves of four selected species is documented. There was an increasing and decreasing tends in all four plant species at all three vehicular emission exposed sites (MVL, HVL and HeVL) compared to control site (LVL). In all experimental sites such as MVL, HVL and HeVL, the extra growth and reduction pattern significantly (P < 0.001, 0.01 or 0.05) observed when compared to control site (LVL) for L, B and L/B ratio. The visible injuries (in %) of leaves were also observed in increasing trends. This study is a preliminary assessment of tolerant species that already have been used in greenbelt development to protect air pollutants as well as biological monitoring to know exact load of automobile air pollution but further researches are needed in relation to biochemical and genetic damage study. It was observed that out of four selected species Ficus bengalensis, Alstonia scholaris and Neolamarckia cadamba are more tolerant species and Ficus religiosa is a less tolerant species because of these may have fighting abilities by waxy coatings, accumulation and degradation abilities to vehicular air pollution at all exposed area when compared to control area.
Źródło:
International Letters of Natural Sciences; 2014, 04
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of biomarker with special reference to antioxidant level in blood as occupational exposure of sewage and garage workers
Autorzy:
Basu, R.
Talapatra, S.N.
Mukhopadhyay, A.
Ray, S.S.
Chakrabarti, P.
Chaudhuri, U.
Chakrabarti, S.
Powiązania:
https://bibliotekanauki.pl/articles/11257.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
assessment
biomarker
special reference
antioxidant level
blood
occupational exposure
sewage
garage
worker
waste water
human blood
Opis:
The present study deals with the estimation of antioxidant levels in blood of sewage and garage workers exposed to sewage water, washing water and vehicular air pollution compared with control group of population. The study areas were selected on the basis of drainage clearance and wards where workers are active as sewage workers. For garage workers, the garage selected was a large and busy one where continuous vehicles washing, repairing etc are carried out. These two exposed groups were compared to non-exposed group of population as control. The blood samples were collected from two groups of exposed population as well as control population and the antioxidant levels were estimated in blood. The present results clearly indicate that there was decreasing trend of the antioxidant level in blood for sewage and garage workers. In the control groups of population the antioxidant levels were found to be within normal range, but for sewage workers (0.14-0.36 mM) and garage workers (0.12-0.36 mM) the antioxidant levels were significantly lower. The range of antioxidant level in human blood is 0.5 to 2.0 mM. It was found to be significantly lower (P < 0.001 or 0.05) in addicted sewage and garage workers when compared with non-addicted groups. All the exposed groups were showed to be having significantly lower antioxidant level when compared to control groups. This study is a preliminary assessment to know the potent biomarkers for oxidative stress and estimation of antioxidant level in blood due to occupational exposure. This study shows a way for easy screening of biomarker assessment but further work is needed in relation to biochemical, enzymological and genetic damage study.
Źródło:
International Letters of Natural Sciences; 2014, 09
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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