It is the purpose of this article to provide additional and cumulative remedies to prevent and abate air pollution and air contamination. Nothing in this article contained shall abridge or alter rights of action or remedies now or hereafter existing, nor shall any provision of this article or anything done by virtue of this article be construed as estopping individuals, counties, cities, towns or villages or the state from the exercise of their respective rights to suppress nuisances or to prevent or abate air pollution or air contamination.