Economic air pollution control model for Los Angeles County in 1975 - Part II: Application of Model to Photochemical Smog in Los Angeles County in 1975
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The general least cost-air quality model of Part I is
characterized for the problem of photochemical smog in
Los Angeles County in 1975. Emission levels are specified
by average tons/day emissions of reactive hydrocarbons
(RHC) and nitrogen oxides (NO_x). Air quality, also two
dimensional, is specified by the expected number of days
per year that oxidant and nitrogen dioxide in Central Los
Angeles exceed the California 1-hr state standards. The
baseline for additional control policy is the 1975 emission
level with the present federal new car control program and
with other sources having the degree of control existing in
1971. The least cost of reaching various emission levels is
found by applying linear programming to 23 major source
types and 31 potential “add-on” controls. Expected O_3
and NO_2 levels are found as functions of emission levels
using empirical-statistical air quality models. These results
are combined to yield the least cost of attaining various
O_3 and NO_2 levels in Central Los Angeles in 1975.