Since inspired air is 21% oxygen and atmospheric pressure is 760 mmHg (at sea level), the partial pressure of oxygen is 0.21 x 760 mmHg = 160 mmHg. As air moves into the alveoli, water vapor and carbon dioxide are added, and that reduces the partial pressure of oxygen to about 100 mmHg in the alveolar gas.
Philipsburg, Centre County, Pennsylvania. Philipsburg is a borough in Centre County, Pennsylvania, United States. It is located at 40Â°53â²42â³N 78Â°13â²09â³W / 40.89500Â°N 78.21917Â°W / 40.89500; -78.21917Coordinates: 40Â°53â²42â³N 78Â°13â²09â³W / 40.89500Â°N 78.21917Â°W / 40.89500; -78.21917 (40.895, -78.2193). It is part of the State College, Pennsylvania Metropolitan Statistical Area.
Genealogical Resources Northumberland County Courthouse 2nd and Market Streets Sunbury, PA 17801. AVAILABLE: Birth, Death records from 1893 to 1905, Marriage records from 1885, Probate and Land records from 1772.The address for the County Clerk's Office is: 201 Market Street.The main phone number is: (570) 988-4100.orthumberland County Message Board Search queries and post your own! History of Northumberland County by Herbert C. Bell, 1891. Northumberland County Lookups Here's some helpful folks to assist you! Genealogical & Biographical Annals of Northumberland County by J. L. Floyd, 1911.