In granting any variance, the commission may impose specific conditions upon the proposed use or activity necessary to assure that the use or activity will have no adverse impacts upon the public health, safety or welfare, the environment or the resources of the park. Such conditions may be imposed without regard to whether the commission could otherwise impose such conditions pursuant to the substantive authority of the commission under ECL, articles 43 and 71, title 33, or the rules or regulations promulgated by the commission thereunder.