Table 8.

Interaction analysis for BOD

BOD	Value	Df	Chisq	Pr(>Chisq)
Winter-Autumn : MH-MN	338.13	1	12.79	0.02893
Spring-Autumn : MH-MN	395.73	1	17.35	0.00267
Winter-Autumn : MH-NO	351.31	1	13.81	0.01703
Spring-Autumn : MH-NO	326.29	1	11.80	0.04743
Spring-Summer : GA-DH	334.22	1	12.38	0.03561
Spring-Autumn : GA-DH	459.20	1	23.37	0.00012
Winter-Spring : GA-MN	-324.65	1	12.16	0.03952
Spring-Summer : GA-MN	427.61	1	20.26	0.00059
Spring-Autumn : GA-MN	544.23	1	32.82	9.1E-07
Spring-Summer : GA-NO	363.48	1	14.64	0.01106
Spring-Autumn : GA-NO	474.79	1	24.98	5.2E-05