... or morbidity. The majority of air pollution and health studies fix the effects of air pollution tobe constant over time, and model long-term trends and temporal correlation in the health data using ... straightforward.4.2 Modelling the effects of air pollution The effects of air pollution are typically assumed to be constant (represented by γ),or depend on the level of air pollution, the latter of which replaces ... Assembly of Wales, and Northern Ireland Assembly, who provided the mortality data fromGreater London.18 Lee, D. and Shaddick, G. (2008) Modelling the effects of air pollution on health...