Speaking to the Anatolia news agency recently, Associate Professor Feza Karaer from Uludağ University's department of environmental engineering said Lake Ulubat has been contaminated by raw sewage and industrial waste, which deteriorate the quality of the water and thus shorten the life of the lake. Lake Ulubat is also considered a wetland and is included in the Ramsar Convention, designed to protect wetlands of international significance and signed by Turkey in 1994.
Karaer said they have initiated a project supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK), the Bursa Waterworks Authority (BUSKİ) and the State Waterworks Authority (DSİ) that aims to protect the water quality of the lake. Due to the fact that the lake also hosts hundreds of bird species every year, she said these bird species are also under threat. She also said there has been a significant decrease in the number of the lake's fish species due to the deterioration of water quality. "The current size of the lake is not the same as it was in the 1980s and 1990s. There has been a considerable amount of shrinkage in recent years," she added.