1. In this Act, unless the context indicates a different meaning, the following words and expressions mean or designate:“atmosphere” : the ambient air surrounding the earth, excluding the air within any structure or underground space;
“contaminant” : a solid, liquid or gaseous matter, a microorganism, a sound, a vibration, rays, heat, an odour, a radiation or a combination of any of them likely to alter the quality of the environment in any way;
“contaminant release” : any deposit, discharge, issue or emission of contaminants in or into the environment;
“elimination of residual material” : any operation for the final deposit or discharge of residual materials in or into the environment, in particular by dumping, storage or incineration, including operations to treat or transfer residual materials with a view to their elimination;
“energy vector” : any source, material or electromagnetic wave, field, plasma, pressure and any direct or indirect cause of transfer, storage or liberation of energy;
“environment” : the water, atmosphere and soil or a combination of any of them or, generally, the ambient milieu with which living species have dynamic relations;
“field” : any zone of influence or area of space where a specified phenomenon is present;
“hazardous material” : a material which, by reason of its properties, is a hazard to health or to the environment and which, within the meaning of a regulation under this Act, is explosive, gaseous, flammable, poisonous, radioactive, corrosive, oxidizing or leachable or is designated as a hazardous material, and any object classed by regulation as a hazardous material;
“material wave” : a line or surface propagated by shock or vibration of gaseous, liquid or solid matter including infrasounds (0 to 16 Hertz), sounds (16Hz to 16KHz) including shock waves, ultrasounds (16KHz to MHz), and any mechanical oscillation;
“Minister” : the Minister of Sustainable Development, Environment and Parks;
“motor vehicle” : any motor vehicle within the meaning of section 4 of the Highway Safety Code (chapter C‐24.2); “municipality” : any municipality, the Communauté métropolitaine de Montréal, the Communauté métropolitaine de Québec, as well as an intermunicipal management board;
“person” : a natural person, legal person, trust, partnership, cooperative or any other group of persons;
“plasma” : a state of matter characterized by disorganization of atoms at a very high temperature and which may exhibit a particular behaviour in an electric or magnetic field;
“pollutant” : a contaminant or a mixture of several contaminants present in the environment in a concentration or quantity greater than the permissible level determined by regulation of the Government, or whose presence in the environment is prohibited by regulation of the Government;
“pollution” : the condition of the environment when a pollutant is present;
“ray” : any transmission of energy in the form of particles or electromagnetic waves with or without production of ions when they pass through matter;
“reclamation of residual materials” : any operation to obtain usable substances or products, or energy, from residual materials through re-use, recycling or biological treatment, including composting and biomethanation, land farming, regeneration or any other process that does not constitute elimination;
“residual materials” : any residue resulting from a production, treatment or utilization process and any substance, material or product or, more generally, any object that is discarded or that the holder intends to discard;
“soil” : any land or underground space even if submerged in water, including an area of land covered by a structure;
“source of contamination” : any activity or condition causing the release of a contaminant into the environment;
“water” : surface water and underground water wherever located;