The ratio of BOD 5 :BOD 30–31 −1 −1 averaged 0.43 during the dry season and 0.30 during the rainy season. Mean BOD water was 15.7 and 13.4 mg L −1 30–31 during the dry and rainy seasons, respectively.
The ratio of BOD5:BOD30–31−1−1averaged 0.43 during the dryseason and 0.30 during the rainy season. Mean BODwater was 15.7 and 13.4 mg L−130–31during the dry and rainy seasons,respectively.