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.
Cozumel and the whole of the state of Quintana Roo put the clocks forward permanently by 1 hour at 2am on Sunday, February 1, 2015. Cozumel will put the clocks forward permanently by 1 hour, this weekend, as Mexico creates a new time zone in the south-east of the country. The whole of the state of Quintana Roo will make the change at 2am on Sunday, February 1, 2015.