The characteristics of PAHs accumulated on pine needles which were used as passive samplers of atmospheric POPs were studied. Atmospheric PAHs were accumulated on pine needles. The absorbed rate of PAHs was higher in gaseous state than in particulate and is not constant. The accumulation rate did not change too much among different classes of pine trees. Therefore young pine needles is better as a passive sampler of atmospheric PAHs for short monitoring period.
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