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Phytoindication of the ecogenotoxic effects of vehicle emissions using pollen abortion test with native flora

100%

Greguskova E., Micieta K.

Polish Journal of Environmental Studies

2013

tom 22

nr 4

This study aimed to evaluate the rate of ecogenotoxicity caused by traffic emissions at sites in the vicinity of roads and at sites near planned highway construction using a pollen grain abortion assay with higher wild plant species. The relationship between pollen grain abortivity and distance from a road also was assessed. The highest values were found at a distance of 30 m, where the prevailing wind direction was parallel to the road. Wind blowing away from the road shifted this boundary to a distance of 350 m. The results showed the highest genotoxicity at the “Ring road” site, where the frequency of abortive pollen grains was 4.05 times higher than at the control site, and at the “Dubná Skala” site, with induction factor 3.48. Based on our results we can conclude that Chelidonium majus, Cichorium intybus, and Melilotus albus are suitable species for the detection of genotoxicity in the environment.

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Appraisal of sulphur contaminants from transportation in urban Zaria, Nigeria

67%

Aliyu Y. A., Musa I. J., Youngu T. T.

International Letters of Natural Sciences

2013

tom 02

As a step towards remediation of sulphur contaminants, this study used a Crowcon Gasman (gas detection instrument) to collect and analyze Sulphuric gas samples from densely populated areas of urban Zaria. The results showed varying concentrations of Sulphur Dioxide (SO2) and Hydrogen Sulphide (H2S). The high concentrations of these pollutants detected can be attributed to increased population growth, increased production of gaseous wastes and increased number of vehicular movement. The results indicate also that the concentrations of pollutant sulphur component SO2 measured at all sampling points, with exception of the control site were hazardous while that of H2S were within safe limit set by FEPA and ACGIH respectively. Statistical tests were performed which established significant variation/relationship between detected pollutants and traffic volume. Findings from this study imply that vehicular emission within urban Zaria is not within the safe limit which further reveals that transport-related pollution in Zaria urban area can be potentially hazardous to health.

Ograniczanie wyników

1 International Letters of Natural Sciences

1 Polish Journal of Environmental Studies

1 Aliyu Y. A.

1 Greguskova E.

1 Micieta K.

1 Musa I. J.

1 Youngu T. T.

2 2013

Wyniki wyszukiwania

Phytoindication of the ecogenotoxic effects of vehicle emissions using pollen abortion test with native flora

Appraisal of sulphur contaminants from transportation in urban Zaria, Nigeria