A substantial increase in the num ber of industrial enterprises, as com. pared with 1938, is responsible for the greatest number of nuisances, The majority of these enterprises come under the heading of "Offensive ior to the has tilities, located in Chinese territory The types of offensive trades most dieutt to dear with have been bone-boiling and storage yards, sile cocoon deying yards, tanneries, oil refineries, [chemical works and. pigsties.
No creek pollution to speak of is recorded in the International Settlement, A different situation, however, found in the "Outside Roads" areas. Practically all creeks in these areas are dally becoming more seriously polluted by' waste discharges from offensive trades and factories. The worst offenders are;—tanneries, cheimieal works, dyeing works and all refineries.
The complete lack of a satisfactory drainage system in the areas off Muni cipal Roads and the prohibitive cost to private interests to provide such Industrial smoke grown more serious and more num-trous than in preceding years. They have mostly occurred in the areas formerly known as the best residen-{tial areas in Shanghai. The presence many factories in 2 confined area inevitably "ives rise to various undesirable and offensive conditions, folie of which is smoke. Forty-four industrial smoke nuisances have been reported by the public, and 37 re-Jgistered by the staff of the Depart ment, All of them have been thoroughly investigated and a general study of smoke nuisance problems in
Text read from the printed page and cleaned; old type leaves the occasional error.