still stagnant polluted water among large rocks with fallen trees in forest

aquatic body brackish collection contamination cut deforestation dirty disaster fallen forest green greenery ground groundwater icky impure insanitary jungle landscape logs motionless muddy natural nature plantation plants polluted pollution pond putrid rocks rocky stagnant stale standing static stationary still surface toxicology trees tropical trunks unclean unhealthy unhygienic unsafe vegetation waste wastewater water woodland woods yucky