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.
Within the state, LPNs make up 8 % of nurses in the state. The Oregon LPN comfort score is 84. This takes into account the average LPN salary, average state salary and cost of living. The Oregon RN comfort score is considerably higher at 146, ranking 3rd in the nation.