1) Reception 
insertion; infusion
Environmental concentration of a pollutant resulting from a combination of 
• (n.) The act of immitting, or of sending or thrusting in; injection; -- the correlative of emission.
Im·mis'sion noun [ Latin immissio : confer French immission . See Immit .] The act of immitting, or of sending or thrusting in; injection; -- the correlative of emission . 
Type: Term Pronunciation: i-mish′in Definitions: 1. Environmental concentration of a pollutant, resulting from a combination of immissions and dispersals; often synonymous with exposure.
immission The act of immitting, or of sending or thrusting in; injection.