TIME TRENDS OF PAHS POLLUTION LEVEL RECORDED IN THE SOIL CORE FROM TIANBAO ROCK, A STATE NATURAL RESERVATION IN SOUTHEASTERN CHINA

摘要

A soil core was sampled at Tianbao Rock State Natural Reservation on January 17, 2005. Concentrations of 18 PAHs (∑18PAHs) in the soil core of different depth were determined and time trends of the ∑18PAHs were achieved. Compared with PAHs in the surface soil of some other places, level of the ∑18PAHs is very low and can be considered as the background to most of the places elsewhere. As a result of source distinguishing along the time trends, petroleum usage has become the main source of the ∑18PAHs in Tianbao Rock soil in recent years, indicating that human activities have uneglectable influencing on the environment.