even ozone, to form a wide variety of toxic products, some of which may cause biological mutations. Examples of these chemicals include the nitrate radical, nitroarenes, and nitrosamines. Visibility Impairment - Nitrate particles and nitrogen dioxide can block the transmission
In the U.S., the clocks will be turned back one hour on Nov. 2, at 2:00 a.m. local time, so trick-or-treaters will hang on to a little more light on Halloween. (Mark your calendar, we âspring aheadâ an hour on the second Sunday in March.). If you live in Europe, you will have already moved your clock back to Standard Time on Sunday, Oct. 26, in the wee hours of the morning (it varies by country), in Asia, most countries do not observe Daylight Saving.
Daylight Saving Time officially begins Sunday, March 8, 2015. The sun will rise over the Chicago area at 7:15 a.m. that day, and set at 6:48 p.m. The time change officially takes place at 2 a.m., but you donât have to spring out of bed and move the big hand on your clock ahead an hour. The change is automatic for most smartphones, computers, tablets and other digital devices.