Valokuva 1: Exhaust pipe, Air pollution, Fine particul pollution, Gas fumes
Valokuva 2: Exhaust pipe, Air pollution, Fine particul pollution, Gas fumes
Valokuva 3: Exhaust pipe, Air pollution, Fine particul pollution, Gas fumes
Valokuva 4: Exhaust pipe, Air pollution, Fine particul pollution, Gas fumes
Valokuva 5: Exhaust pipe, Air pollution, Fine particul pollution, Gas fumes
Valokuva 6: Exhaust pipe, Air pollution, Fine particul pollution, Gas fumes