Aerial fly out to reveal dredging equipment and workers on a barge on the Saigon River in Ho Chi Minh City, It's a sunny day with blue sky but with very high air pollution

saigon vietnam ho chi minh riverbank river riverside pollution environment asia barge dredging construction excavator excavation silt boat crane district dredge mud water dredger excavate ship aerial transportation smog vietnamese extraction workers floating hydraulic equipment atmosphere shipping day deepening lake marine thao dien reflection blue sky toxic machine sand air sunny smoke