Dissertations Dissertations, Academic Pollution Water 28 Air 19 Environmental aspects 18 Water quality 10 Groundwater 7 Measurement 7 Water quality management 6 Air quality 5 Management 4 Automobiles 3 Environmental monitoring 3 Haze 3 Heavy metals 3 Refuse and refuse disposal 3 Aquatic organisms 2 Biosensors 2 Effect of water pollution on 2 Environmental management 2 Exhaust gas 2 Islam 2 Motors 2 Organic compounds 2 Particles 2 Physiological effect 2 Prevention 2 Religious aspects 2 Acid rains 1