نتایج جستجو برای: water environment
تعداد نتایج: 1033333 فیلتر نتایج به سال:
In recent years, water pollution and pesticide residues in the food chain have become a serious environmental and health hazard problem. Therefore, an efficient technology is essential for complete mineralization of pesticides to non-toxic forms. Nanotechnology offers many potential benefits to improve existing environmental technologies using new materials with effective performance, re...
background and purpose: school, as a reliable place in educating students, has an important role in training. the aim of this study was the assessment of environmental health of primary schools in norabad mamasani city of fars province. materials and methods: in this analytical-descriptive and cross-sectional study, all of 26 primary schools in norabad mamasani city were surveyed by using censu...
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