The urban economic development needs transportation facilities. People move form one location to the other rapidly. The amount of vehicle increases, it also increases lead content in the air. The human health cost inc...The urban economic development needs transportation facilities. People move form one location to the other rapidly. The amount of vehicle increases, it also increases lead content in the air. The human health cost increases as lead content in the air increases. The reduction of lead content for 10 percent, it gives economic value as much as Rp. 11.828.365.993,- （US$ 985,697.17）. And if lead content decreases for 25 percent, it yields economic benefit as much as Rp. 34.509.073.173, - （US$ 2,875,765.10）. The analysis of benefit uses exposure-response function method. Analysis of people awareness for keeping the environment uses contingent valuation method survey and willingness to pay. People awareness to keep their environment and to decrease lead content is not good enough, despite the fact that there is some increase of awareness, for example the awareness of using alternative path- through ring road on peak hours.展开更多
The research aimed to apply phytoindication for controlling air pollution with chlorine and lead in Yerevan. The research was performed between 2005 and 2008.5 arboreous species were studied： Robinia pseudoacacia L.,...The research aimed to apply phytoindication for controlling air pollution with chlorine and lead in Yerevan. The research was performed between 2005 and 2008.5 arboreous species were studied： Robinia pseudoacacia L., Fraxinus excelsior L., Populus alba L., Morus alba L. and Uitis vinifera L.. The research showed that arboreous plants growing in the city accumulate chlorine and lead. Chlorine concentrations in all 5 species varied from 0.50% to 1.77%, and the maximum value was found in Robiniapseudoacacia L., exceeding the control by 3.6 times. As for the level of lead in plants, the concentration varied between 1.64-7.65 mg/kg, and the maximum rate exceeds the background （2.0 mg/kg） by 3.8 times. The authors produced a schematic map of chlorine distribution all over the city, territory, and detected the most polluted zones. According to the data the autbtors collected, only 3 of 5 studied species displayed high intake rate and tolerance to lead and chlorine pollution： Robinia pseudoacacia L.. Fraxinus excelsior L. and Populus alba L. Thus, the authors advise these species for planting in Yerevan. The results of this research were used by the Municipality of Yerevan for functional tree planting in the city.展开更多
文摘The urban economic development needs transportation facilities. People move form one location to the other rapidly. The amount of vehicle increases, it also increases lead content in the air. The human health cost increases as lead content in the air increases. The reduction of lead content for 10 percent, it gives economic value as much as Rp. 11.828.365.993,- （US$ 985,697.17）. And if lead content decreases for 25 percent, it yields economic benefit as much as Rp. 34.509.073.173, - （US$ 2,875,765.10）. The analysis of benefit uses exposure-response function method. Analysis of people awareness for keeping the environment uses contingent valuation method survey and willingness to pay. People awareness to keep their environment and to decrease lead content is not good enough, despite the fact that there is some increase of awareness, for example the awareness of using alternative path- through ring road on peak hours.
文摘The research aimed to apply phytoindication for controlling air pollution with chlorine and lead in Yerevan. The research was performed between 2005 and 2008.5 arboreous species were studied： Robinia pseudoacacia L., Fraxinus excelsior L., Populus alba L., Morus alba L. and Uitis vinifera L.. The research showed that arboreous plants growing in the city accumulate chlorine and lead. Chlorine concentrations in all 5 species varied from 0.50% to 1.77%, and the maximum value was found in Robiniapseudoacacia L., exceeding the control by 3.6 times. As for the level of lead in plants, the concentration varied between 1.64-7.65 mg/kg, and the maximum rate exceeds the background （2.0 mg/kg） by 3.8 times. The authors produced a schematic map of chlorine distribution all over the city, territory, and detected the most polluted zones. According to the data the autbtors collected, only 3 of 5 studied species displayed high intake rate and tolerance to lead and chlorine pollution： Robinia pseudoacacia L.. Fraxinus excelsior L. and Populus alba L. Thus, the authors advise these species for planting in Yerevan. The results of this research were used by the Municipality of Yerevan for functional tree planting in the city.
