POPs Toolkit Glossary

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ILCR (Incremental Lifetime Cancer Risk)The increased potential of acquiring cancer during a life time, as a result of chemical exposure. In Canada, cancer risks are considered negligible where the estimated ILCR is < 1-in-100,000 (<1x10-5).
In SituIn its original place; unmoved unexcavated; remaining at the site or in the subsurface.
IndustrialRefers to lands used for heavy industry (i.e., manufacturing, fuel refinement, heavy equipment repair or storage etc).
Infiltration RateThe quantity of water that can enter the soil in a specified time interval.
Information Programs and Other Government InitiativesGovernment sponsored programs or initiatives for reducing risk through better information, or improved communication, or incentive or certification programs or series of environmental management standards, or labeling of product.
Inhalable ParticlesAll dust capable of entering the human respiratory tract.
Inhalation exposureChemical exposure via breathing in vapors or small particles.
Inorganic ChemicalsChemical substances of mineral origin, not of basically carbon structure.
InsecticideA pesticide compound specifically used to kill or prevent the growth of insects.
Internal Rate of Return (IRR)Internal Rate of Return (IRR) is the discount rate that generates a zero net present value for a series of future cash flows. IRR is the rate of return that makes the sum of present value of future cash flows and the final market value of a project (or an investment) equal its current market value. IRR provides a simple ‘hurdle rate’, whereby any project should be avoided if the cost of capital exceeds this rate.
IRIS (Integrated Risk Information System)A risk assessment reference website hosted by the US EPA: http://cfpub.epa.gov/ncea/iris/ .
Hatfield Consultants The World Bank funded by the Canadian POPs Trust Fund through the      
Canadian International Development Agency
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