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초록

Sixteen REEs(Rare Earth Elements) were analyzed for PM10 and PM2.5 samples in
Seoul. The REE concentrations in the atmosphere over Seoul were compared with the
data from Beijing and Inner Mongolia. The amounts of Ce, La, Nd and Y were higher
than that of the other elements. The total amount of REEs was about 80 times less
than that in Bayan Obo, in Inner Mongolia, China. The order of concentration of REEs
in PM10 was the same as those in Bayan Obo and Beijing(in China, for total suspended
solids). As for the ratio of PM10 and PM2.5, at the same sampling site and time, the
mass of the sampled particulate of PM10 was about 2 times higher than that of PM2.5.
The increased amounts of Ce and La were the same as well, while the amounts of Nd
and Y were 10 times higher than those of PM2.5.
Sixteen REEs(Rare Earth Elements) were analyzed for PM10 and PM2.5 samples in
Seoul. The REE concentrations in the atmosphere over Seoul were compared with the
data from Beijing and Inner Mongolia. The amounts of Ce, La, Nd and Y were higher
than that of the other elements. The total amount of REEs was about 80 times less
than that in Bayan Obo, in Inner Mongolia, China. The order of concentration of REEs
in PM10 was the same as those in Bayan Obo and Beijing(in China, for total suspended
solids). As for the ratio of PM10 and PM2.5, at the same sampling site and time, the
mass of the sampled particulate of PM10 was about 2 times higher than that of PM2.5.
The increased amounts of Ce and La were the same as well, while the amounts of Nd
and Y were 10 times higher than those of PM2.5.