clean and dirty water in one glass on whi

background blue brown clean clear close closeup color concept contaminated contamination contrast cut cutout detail dirty drink ecologic ecology ecosystem environment environmental filtered filtering filtration fluid fresh freshness front full garbage glass graphic half health healthy household idea impure indoor industrial industry isolated kitchenware light liquid macro measures nature nobody object one only out poison poisoned polluted pollution protection purity septic single studio toxic transparency transparent unclean uncleanly unhealthful unhealthy unhygienic up used view waste water white