Algeciras contamination ecology energy factory industrial oil petrol pollution refineries refinery smoke toxic harbour industry machine oil refinery pipe pump Rotterdam The netherlands chemical petro polution articulated barrel barrels chemicals contaminate corrode corrosion dioxin drum drums dump environment environmental garbage gas gasoline green issue issues leak leakage lorry management metal petrochemical poison poisonous pollute polluting recycle refine refined rust rusty seep seepage seeping semi spill stare storage substance technology trailer transport transportation vehicle waste weirdvis building earth warming chimney CO2 global warming power sky smokestack smokestacks steam vapor vapour