cans chemicals containers corroded disposal dump environmental hazard garbage hazardous hazardous waste pollutants pollution rubbish rust spill toxic toxic waste trash waste leaking old paint rusted 2016 decay fishing ocean ruins village water coastline dangerous decaying biodegradably-slow cheap chemical discardable disposable empty environmentally-unfriendly EPS expanded-polystyrene-foam foamed food-plate hazardous-waste inexpensive insulating lightweight low-cost monomer-styrene plastic plate pollutant polystyrene PS substance synthetic-hydrocarbon-polymer toxic-waste unused widely-used