Scholars also remind people to be wary of "acid fog." Because the water droplets in fog are smaller, the acid in them tends to be more concentrated and of a lower pH.
酸雨之外，學者還特別提醒民眾必須留意「酸霧」，因為霧的水滴分子更小，酸度會較雨水更為濃縮也更酸。