the creek and human pollution 04

background bad biological casing contaminants creek cure defective disaster domestic drain duct effluent environment environmental fragrance freshwater green gutter heal human impact infrastructure lack landscape margins municipal natural nature odor open outdoor pipe plant pollutant pollutants pollution savor scent sewage sewer sewerage sewers smell snuff storm stream tainted thrown trash treat treatment tube tubing ulcerated untethered untreated urban waste wastewater water