Fig. 3

Temporal trends in water quality for a COD in dry season, b COD in wet season, c NH3-N in dry season, and d NH3-N in wet season over the period 2008–2015
Temporal trends in water quality for a COD in dry season, b COD in wet season, c NH3-N in dry season, and d NH3-N in wet season over the period 2008–2015