by Adair Locke, MD. 1  Methylene blue is administered intravenously by anesthesia providers for a variety of clinical uses and may be used with increasing frequency as an intraoperative urologic marker dye due to an indefinite nationwide shortage of indigo carmine.
The Effects of Humidity on the Human Body. As discussed in Home Humidity and Allergies, humidity directly affects the amount of allergens in the indoor environment. In particular, high humidity causes both dust mite populations and mold colonies to grow, thereby greatly increasing allergy sufferers' total allergen load.
Direct effects of weather on air quality. What the weather is doing can have direct effects on air quality at a given location. For example, sunshine, rain, air temperature and wind can affect the amount of air pollution present: Sunshine - makes some pollutants undergo chemical reactions, producing smog.