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