This concept is explored herein for a 13.2 MW rated downwind design compared to a conventional upwind three-bladed rotor design that uses the Sandia SNL100-02 blades.
In the sensitivity analysis the pollutant ratios for downwind locations compared to upwind locations increased for most pollutants supporting the validity of the exclusion criteria (table 4, supplementary material).
In a 1981 study by Dr. Carl Johnson, health director for Jefferson County, showed a 45 percent increase in congenital birth defects in Denver suburbs downwind of Rocky Flats compared to the rest of Colorado.
Furthermore, genes encoding resistance to tetracycline antibiotics were significantly more abundant in PM collected downwind of feed yards as compared to upwind.
EYE, THROAT and CHEST symptom scores were highest at the heavily trafficked location compared to the downwind or upwind locations during all years, with one exception (table 2).
Exposure downwind of the stack was compared to upwind of the stack and to a distant heavily trafficked location adjacent to a main road.
Overall, eNO levels, CHEST symptoms, 'smell-strong' and 'smell-annoying' were higher at the heavily trafficked locations compared to upwind or downwind locations, confirming the findings of the intention-to-treat analysis (table 2, supplementary material).
An urban heat island of inner city sites of about 1.0 K and a 5%to20%0% increased precipitation compared to areas 43 km downwind of the urban center have been determined (Schlünzen et al. 2010; Wiesner et al. 2014).
Overall, the change in pollutants was greatest at the heavily trafficked sites compared to the upwind and downwind sites combined.
