松嫩平原湖泊底泥重金属空间变异特征及其风险评价

于万辉, 王俊杰, 臧淑英

The Spatial Variability Characteristics and Potential Ecological Risk Assessment of Heavy Metals of Lake Sediments in the Songnen Plain

Wan-hui YU, Jun-jie WANG, Shu-ying ZANG

表5 各样本单项与综合潜在生态风险指数

Table 5 Individual and general indices of potential ecological risk,and risk grades assessment at each samples

样本	单项潜在风险指数 $\begin{matrix} E_{r}^{i} \end{matrix}$				综合潜在风险指数 $\begin{matrix} RI \end{matrix}$	样本	单项潜在风险指数 $\begin{matrix} E_{r}^{i} \end{matrix}$				综合潜在风险指数 $\begin{matrix} RI \end{matrix}$
样本	Cu			Ni	综合潜在风险指数 $\begin{matrix} RI \end{matrix}$	Pb	Zn	Cu	Ni	Pb	Zn
S1	9.12	5.92	12.24	4.13	26.38	S17	12.48	6.44	9.76	4.1	23.35
S2	8.76	5.4	7.92	3.48	37.72	S18	5.4	4.04	8.72	4.61	26.04
S3	10.14	7.44	15.04	4.23	30.14	S19	9.42	6.6	6.48	3.01	32.59
S4	10.44	7.56	8.08	3.16	15.54	S20	9.12	5.52	12.16	5.18	35.36
S5	4.02	3.04	6.32	1.85	42.07	S21	9.78	6.44	14.24	4.25	27.07
S6	8.76	7.44	21.36	3.54	28.4	S22	10.8	7.8	4.32	3.54	22.89
S7	6.42	6.2	12.4	2.77	29.79	S23	9.78	5.08	4.32	3	40.35
S8	8.1	5.92	10.32	4.65	19.5	S24	21.96	7.12	6.32	4.27	24.35
S9	3.36	3.72	10.32	1.88	29.83	S25	4.74	3.4	12.64	3.15	20.96
S10	9.42	7.12	9.12	3.77	58.8	S26	8.76	5.6	3.52	2.45	27.45
S11	35.76	4.56	11.44	6.15	24.8	S27	6.72	4.32	11.68	4.11	11.46
S12	7.44	7.2	5.52	3.88	38.92	S28	2.7	2.72	3.92	1.92	41.51
S13	10.14	8.24	16.32	3.4	17.13	S29	11.82	8.8	16.08	3.93	20.85
S14	8.76	3.88	2.8	1.25	29.83	S30	2.7	3.4	11.84	2.65	43.16
S15	10.44	5.76	7.52	5.54	43.01	S31	13.5	8.44	15.84	4.5	32.26
S16	13.5	8.8	15.04	4.75	33.56	平均	9.81	5.93	10.12	3.65	30.16