A new method of measuring alkaline pollutants from newly-built concrete buildings is prevented for regulating the museum environment. Ammonia gas in the environment is absorbed into copper (II) sulfate-containing test paper by synthesis of tetra- ammine-(monoaquo) copper (II) sulfate. The formation of this reagent was studied by using spectrophotometer and electron spin resonance spectrometer. It was proved that ammonia gas is one of the alkaline pollutants produced from newly-built concrete buildings. Moreover, it is assumed that alkaline pollutants produced from newly-built concrete buildings are harmful not only to oil paintings but also to copper-containing substances, rust in bronze, malachite green pigment, and others.