Investigation of heavy metals in the bed sediments of wetlands can be used as an appropriate index for determining environmental quality of wetlands. In this study, the concentration of lead (Pb), zinc (Zn) and cadmium (Cd) in sediments of 8 points in the Hashilan wetland was evaluated. Geo-accumulation index (I _geo), input potential index (IPI) and pollution index (PI) calculated for bed sediments of the wetland. The I _geo for Cd, Pb and Zn were obtained as −2.29 to −2.68, −0.86 to −1.15 and −1.77 to −2.12. The PIs for mentioned heavy metals were 0.1–0.3, 0.07–0.14 and 0.007–0.01; and the IPI were 0.19, 0.1 and 0.009, respectively. Based on the results, the concentration of heavy metals in this wetland is lower than international standards, and this wetland is classified as clean and pollution-free regions.

湿地床底沉积物中重金属的研究可以作为确定湿地环境质量的适当指标。本研究评估了哈市兰湿地8个点沉积物中铅（Pb），锌（Zn）和镉（Cd）的浓度。计算湿地床底沉积物的地质累积指数（I _geo），输入潜力指数（IPI）和污染指数（PI）。在我 _的地理Cd的Pb和Zn为-2.29至-2.68，-0.86至-1.15和-1.77至-2.12。提到的重金属的PI分别为0.1-0.3、0.07-0.14和0.007-0.01。IPI分别为0.19、0.1和0.009。根据结果​​，该湿地中的重金属浓度低于国际标准，该湿地被归类为清洁无污染的地区。