a 	b 	c 	d	e 	Pollution	Depth	Temperature	Sediment
s1 	0	2	9	14	2	4.8	72	3.5	S
s2 	26	4	13	11	0	2.8	75	2.5	C
s3 	0	10	9	8	0	5.4	59	2.7	C
s4 	0	0	15	3	0	8.2	64	2.9	S
s5 	13	5	3	10	7	3.9	61	3.1	C
s6 	31	21	13	16	5	2.6	94	3.5	G
s7 	9	6	0	11	2	4.6	53	2.9	S
s8 	2	0	0	0	1	5.1	61	3.3	C
s9 	17	7	10	14	6	3.9	68	3.4	C
s10 	0	5	26	9	0	10.0	69	3.0	S
s11 	0	8	8	6	7	6.5	57	3.3	C
s12 	14	11	13	15	0	3.8	84	3.1	S
s13 	0	0	19	0	6	9.4	53	3.0	S
s14 	13	0	0	9	0	4.7	83	2.5	C
s15 	4	0	10	12	0	6.7	100	2.8	C
s16 	42	20	0	3	6	2.8	84	3.0	G
s17 	4	0	0	0	0	6.4	96	3.1	C
s18 	21	15	33	20	0	4.4	74	2.8	G
s19 	2	5	12	16	3	3.1	79	3.6	S
s20 	0	10	14	9	0	5.6	73	3.0	S
s21 	8	0	0	4	6	4.3	59	3.4	C
s22 	35	10	0	9	17	1.9	54	2.8	S
s23 	6	7	1	17	10	2.4	95	2.9	G
s24 	18	12	20	7	0	4.3	64	3.0	C
s25 	32	26	0	23	0	2.0	97	3.0	G
s26 	32	21	0	10	2	2.5	78	3.4	S
s27 	24	17	0	25	6	2.1	85	3.0	G
s28 	16	3	12	20	2	3.4	92	3.3	G
s29 	11	0	7	8	0	6.0	51	3.0	S
s30 	24	37	5	18	1	1.9	99	2.9	G