Õàðàà ãîëûí ººðºº öýâýðøèõ ÷àäàìæèéí ñóäàëãàà
In 1996, 46 out of more than 120 waste water treatment (WWT) facilities throughout Mongolia conducted regular operations and semi-operations and more than 40% of them didn't conduct operations at all. By 2006, however, these figures had declined or the treatment level had fallen, and it was found that only 41 facilities conducted regular ...