While aspects of the process can help you determine what chemicals are in the air, ambient air monitoring should also give you a clear picture of oxygen levels. One of the keys to effective ambient air monitoring is choosing the correct locations to analyze. In outdoor environments, it can be much more difficult to pinpoint danger zones, so it is crucial to select sites that will give you accurate readings on the areas as a whole.
Longest YouTube Video Ever Will Take You 23 Days To Watch. Jonathan Harchick has created and uploaded the longest YouTube video of all time, clocking in at 571 hours, 1 minute and 41 seconds. He says, I challenge anyone to try and make a longer video.. By Megan O'Neill.
The video-sharing site turns 10 years old this weekend. Psyâs âGangnam Styleâ was the first YouTube video to reach a billion views. Just in case you needed a reason to feel old, YouTube will celebrate its 10th birthday this weekend. The video-sharing site was founded on February 14th, 2005 by three former PayPal employeesâSteve Chen, Chad Hurley and Jawed Karim.