00994nam a2200205Ia 4500 CTU_143084 210402s9999 xx 000 0 und d 363.7 Y45 Lu, Chau Yen Environmental quality index for developing countries A Thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering Lu Chau Yen ; Examination Committee : B N Lohani, N C Thanh, H. Kaji Bangkok Asian Institute of Technology 1979 The thesis review the environmental quality indices. A system of finding an environmental quality index for a nation was developed. Air, water, solid waste, noise population density, soil and forest are considered as the elements of environmental quality Environmental indexes,Các chí số môi trường Huỳnh Mai Trung tâm Học liệu Trường Đại học Cần Thơ