POLLUTION AND DENSITY OF VEGETATION: BTEX IN SOME PUBLIC AREAS OF CURITIBA - PR, BRAZIL.

被引：11

作者：

Locateli Godoi, Ana Flavia ^{[1
]}

Moreton Godoi, Ricardo Henrique ^{[1
]}

de Azevedo, Roosevelt ^{[2
]}

Maranho, Leila Teresinha ^{[2
]}

机构：

[1] Univ Fed Parana, Dept Engn Ambiental, BR-81531990 Curitiba, Parana, Brazil

[2] Univ Positivo, BR-81280330 Curitiba, Parana, Brazil

来源：

QUIMICA NOVA | 2010年 / 33卷 / 04期

关键词：

BTEX; urban traffic; bioindication; VOLATILE ORGANIC-COMPOUNDS; SEEDLINGS PICEA-ABIES; LABORATORY CONDITIONS; EXHAUST-GAS; HYDROCARBONS; EMISSIONS; RESPONSES; EXPOSURE; LEAVES;

D O I：

10.1590/S0100-40422010000400012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

POLLUTION AND DENSITY OF VEGETATION: BTEX IN SOME PUBLIC AREAS OF CURITIBA - PR, BRAZIL. The occurrence of benzene, toluene, ethylbenzene, and xylenes (BTEX) in some public areas of Curitiba-PR, Brazil, was evaluated. Their concentrations were then related to the vegetation's density in each area. Average benzene concentrations varied from 3.9 to 6.1 mu g m(-3), with higher values occurring in poorly dense vegetation areas. For toluene, average concentrations ranged from 6.5 to 7.2 mu g m-3. The effect of such pollutants was evaluated by means of a bio indicator, Tillandsia stricta. Variation in total chlorophyll content and in stomatic density were detected in some samples and may be related to the BTEX concentrations found in the studied areas.

引用

页码：827 / 833

页数：7

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