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.
The clocks move forward one hour in the spring, and fall back one hour in the Autumn. USA-Clock Change Times: Spring-time Forward One Hour: March 8th, 2015 at 2 a.m. Fall-Back One Hour November 1st, 2015 at 2 a.m. Europe-Clock Change Times: Spring-time Forward One Hour: 29th March, 2015 at 1 a.m.