Environmental impact 2 water quality measurement 2 Air Quality Measurement 1 Air quality measurement 1 Air quality--Measurement 1 Air--Pollution--Mathematical models 1 Aluminium compounds 1 Ammonia 1 Condensation 1 Copper smelting 1 Dissertations, Academic (Ph.D) 1 Dissertations, Academic(Ph.D) 1 Environment 1 Environment Protection 1 Fermentation 1 Iron and steel 1 Library and information science 1 Measurement of water quality 1 Metadata- Fundamentals-understanding meta data vocabularies 1 Metadata-schemes-services-quality measurement-standards 1 Nitric acid 1 Paper production 1 Petrochemicals 1 Petroleum production 1 Petroleum refining 1 Phosphoric acid 1 Phosphorus 1 Polymer theory 1 Potassium salts 1 Pulp production 1