Even if the air looks clear, it is nearly certain that you will inhale millions of solid particles and liquid droplets. These ubiquitous specks of matter are known as aerosols, and they can be found in the air over oceans, deserts, mountains, forests, ice and every ecosystem in between. via NASA http://www.nasa.gov/image-feature/just-another-day-on-aerosol-earth
With a high of 87F and a low of 61F. Current temp 62 Current condition Partly Cloudy.