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001-es BibID:	BIBFORM078611
Első szerző:	Molnár Vanda Éva (környezetkutató)
Cím:	Urban tree leaves' chlorophyll-a content as a proxy of urbanization / Vanda Éva Molnár, Béla Tóthmérész, Szilárd Szabó, Edina Simon
Dátum:	2018
ISSN:	1873-9318 1873-9326
Megjegyzések:	We tested the effect of urbanization on air pollution based on the chlorophyll-a content of Celtis occidentalis leaves along an urbanization gradient (urban, suburban and rural areas) in Debrecen, Hungary. Chlorophyll-a content of Celtis occidentalis, Acer campestre, and Corylus avellana were compared to test which species is the most useful to study the effects of urbanization. Furthermore, the effects of washing solutions (distilled water, tap water, and rainwater) on chlorophyll-a content of tree leaves were also tested during sample preparation. Chlorophyll-a was extracted from leaf samples with acetone, and it was measured using a spectrophotometer. Along the urbanization gradient, chlorophyll-a content of C. occidentalis leaves was the lowest in the urban area; thus, this species proved to be an effective indicator of anthropogenic emission load. Differences were not significant among species in the suburban and rural areas, where the level of air pollution was moderate. We found that effects of the washing solutions on chlorophyll-a content did not differ significantly from each other. Thus, tap water can be used safely to clean the leaf surface, without significant influence on chlorophyll-a. Our study demonstrated that the chlorophyll-a content of leaves was a useful indicator to assess the level of air pollution.
Tárgyszavak:	Természettudományok Környezettudományok kutatási jelentés Air quality Biomonitoring Celtis occidentalis Photosynthetic pigments
Megjelenés:	Air Quality Atmosphere and Health. - 11 : 6 (2018), p. 665-671. -
További szerzők:	Tóthmérész Béla (1960-) (ökológus) Szabó Szilárd (1974-) (geográfus) Simon Edina (1981-) (ökológus)
Pályázati támogatás:	EFOP-3.6.1-16-2016-00022 EFOP OTKA K 116639 OTKA OTKA KH 126481 OTKA OTKA KH 126477 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM086090
035-os BibID:	(cikkazonosító)559
Első szerző:	Simon Edina (ökológus)
Cím:	Ecological Assessment of Particulate Material (PM5 and PM10) in Urban Habitats / Simon Edina, Molnár Vanda Éva, Tóthmérész Béla, Szabó Szilárd
Dátum:	2020
ISSN:	2073-4433
Megjegyzések:	Trees are especially useful biological indicators. We tested the suitability of tree leaves (Common Lime) to assess PM5 and PM10 deposition in the three summer months of 2018 in Debrecen city, Hungary. We also tested the usefulness of the cheap and simple gravimetric method to assess the PM deposition, and compared to the expensive, but standard laser diffraction method. We found significant differences between the concentrations of PM10 deposited on tree leaves, and on dust traps. A significant difference was found in the concentration of PM5 only in July. A significant difference was also found in the concentration of PM10 among months based on leaves and dust traps. For PM5 there was a significant difference among months based on leaves deposition. We found a significant positive correlation between the PM10 concentration deposited on leaves and on dust traps. A positive correlation was found between the concentration of PM based on the gravimetric and laser diffraction measurement methods. Our findings pointed out the particulate material's washing by rain from leaves; thus, dust deposition on the surface of leaves is limited. Our results demonstrated that trees play an important role in the mitigation of air pollution, and they are a useful indicator of PM deposition for biomonitoring studies.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk air pollution foliage dust deposited dust urbanization urban health environmental assessment
Megjelenés:	Atmosphere. - 11 : 6 (2020), p. 1-11. -
További szerzők:	Molnár Vanda Éva (1994-) (környezetkutató) Tóthmérész Béla (1960-) (ökológus) Szabó Szilárd (1974-) (geográfus)
Pályázati támogatás:	TNN 123457 Egyéb OTKA-116639 OTKA KH 126481 Egyéb KH 126477 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: