Durio zibethinus Durio zibethinus Durio zibethinus is the most common tree species in the genus "Durio" that are known as durian and have edible fruit also known as durian. As with other durian species, the edible flesh emits a distinctive odour that is strong and penetrating even when the husk is intact. Some people regard the durian as having a pleasantly sweet fragrance; others find the aroma overpowering and revolting. The smell evokes reactions from deep appreciation to intense disgust, and has been described variously as rotten onions, turpentine, and raw sewage. The persistence of its odour has led to the fruit's
Ashbridges Bay Wastewater Treatment Plant on the eastern edge of the city, far away from most residents. It is now surrounded by residential areas and strenuous efforts have been made to reduce odours and pollution. Most notable was the shuttering of the plant's incinerators in 1987. An odour control study was completed in 2002 and, beginning in 2002, the area around the plant was also redesigned into a large landscaped park. In 2005, a contract was awarded to design and construct a new odour control system. Until recently, all the sludge has been trucked off site. However, summer 2007 saw odour problems, with the Michigan