A huge body of air that has similar temperature, humidity, and air. pressure at any given height is called an. air mass. Scientists classify air. masses according to temperature and humidity. Four major types of air. masses inï¬uence the weather in North America: maritime tropical, continental tropical, maritime polar, and continental polar. Tropical, or. warm, air masses form in the tropics and have low air pressure.
It employed 28,490 RNs in May 2013 (as per the BLS). At that time, employment per 1,000 jobs for these professionals was 17.366. According to the survey of the Bureau of Labor Statistics, the average annual and per hour registered nurse salary in Oregon was $80,440 and $38.67, respectively, in May 2013.
In 2013, the federal government found that nurses entering the field in Oregon with an ADN earned an average annual salary of $67,900 and an average hourly wage of $32.64. However, nurses that continued schooling to acquire a BSN earned an average annual salary of $92,100 and an average hourly wage of $44.29. Registered nurses with BSN degrees are consistently earning within the 75 th and 90 th wage percentiles among all RNs.