Baia Mare, the formermining and metallurgical industry capital of Romania, is one of the mostproblematic areas in the country in terms of historical pollution and itsconsequences. The present paper, as the second part of a complex three-piecestudy, aims to analyze the air quality evolution in Baia Mare between 1995 and2006. In the previous piece, the first of this series, we provided an overviewof the sources of historical air pollution in Baia Mare. In the third and finalscientific paper, we will analyze the effects of this chronic pollution onhuman health. This article constitutes an analysis of the air quality in BaiaMare, representing a historical investigation of this important environmentalissue in the city’s area. Our work updates and expands the body of informationprovided by previous papers on the topic of environmental pollution in BaiaMare, its purpose being to highlight the chronic air pollution withsulphur dioxide, nitrogen dioxide, ammonia, suspended and sedimentaryparticulate matters, as well as heavy metals between 1995 and 2006. As a resultof the above, it can be concluded that the air quality in Baia Mare in 1995 –2006 was especially critical due to high concentrations of particulate matterspresenting high lead and cadmium content, as well as high sulphur dioxideconcentrations. These pollutants were generated by mining and metallurgicalunits (Remin, Phoenix/Cuprom and Romplumb Corporations), alongside otherfactors: tailing dumps and tailing ponds in the Baia Mare area, where theparticulates were spread around by the air currents; industrial and residentialheating equipments with solid fuel; road traffic, including road dustresuspension; mix-asphalt installations; woodworking etc. The calm weatherconditions, unfavourable to the dispersion of pollutants in the Baia Mare area,have also contributed to the air quality deterioration. However, for theselected timeframe, the pollutant evolution tendency in the local atmosphereshowed a decrease of the heavy metal and sulphur dioxide concentrations, whichwas a result of reduced productive activity for all the local heavy-pollutersand not due to the investments aimed at improving urban air quality, which didnot lead to any significant changes. Currently, Remin and Romplumb Corporationsare insolvent and Cuprom Corporation is bankrupt.