Contamination The presence in, on or under land, air or water of a substance (whether a solid, liquid, gas, odour, heat, sound, vibration or radiation) at a concentration above the concentration at which the substance is normally present in, on or under land, air or water in the same locality, that presents a risk of Environmental Harm, including harm to human health or any other aspect of the Environment, or could otherwise give rise to a risk of non-compliance with any Statutory Requirement for the protection of the Environment.
Hazardous Materials Tenant shall not keep on the Premises any item of a dangerous, flammable or explosive character that might unreasonably increase the danger of fire or explosion on the Premises or that might be considered hazardous or extra hazardous by any responsible insurance company.