An Environmental Study of Temporary Waste Transfer Stations in Tehran (Regions " 2,5,15)

Growing of urban societies, city development, appearance of metropolice and increasing of municipal solid wastes as well as many urban difficulties all are serious threats to the environment and public health of any given society. These problems, in addition to the need for having temporary waste transfer stations for the transport to the main landfill sites, is another important point to many problems in hand. A study is conducted on. the environmental impact of transfer stations for transport of wastes, especially noise pollution and leachate of unpleasant odor as well as noise during the activities of these sites. Samples were taken from solid waste leachings in small semi-trailers and measurment of average noise level by sound recorder during refuse collection was done at nights from 00:00 hour midnight until 02:00 am and duringmorning hours from 06:00 until 07:30 am. A questionnairewas also prepearedand completed by neighboring people living near these areas. The main results show that majority of people enhabiting near these stations were complaining of noise pollution at nights as a result of activities in these sub-stations. 85% of inhabitants were to dissatisfied from unpleasant smells emitted from these sub-stations. Questionnaires were also compieted, considering the health and probable effects of sound and unpleasantodor pollution among transport personnel in these statioIls. More than 95%. of 'the working personnel lack necessary information and sufficient education for performing their duties. The results also showed that the rate of. pollution of leachate at the ground level is more than the standard level recommended by the Department of the Environment. Samples from Ieachate insemi-trailes showed that the average COD, BOD, TDSandPHofthe materials in these stations were 16744,27522, 685.11 mg/lit respectively, With aPH ofS:S"which all are more than the standard limitations for sewages. According to this research, 98% of stations lack systems of collecting leachate