New credit or inquiries from creditors show on your Experian credit report for two years, but only the last year impacts your FICO Score. Sometime opening several credit accounts in a short period of time represents a greater risk to lenders-especially if there isn't also an established credit history on record.
PCBs are mainly broken down either by the effect (direct or indirect) of sunlight or by microorganisms. In general, the persistence of PCB congeners increases with the number of chlorine atoms. Sunlight can play a role in the breakdown of PCBs present in air, water and surface soil. In the atmosphere, PCBs that are present in the atmosphere tend to react with ozone and water under the effect of sunlight.
In the stratosphere, ozone is created primarily by ultraviolet radiation. When high-energy ultraviolet rays strike ordinary oxygen molecules (O 2), they split the molecule into two single oxygen atoms, known as atomic oxygen. A freed oxygen atom then combines with another oxygen molecule to form a molecule of ozone.nce in the stratosphere, the CFC molecules are no longer shielded from ultraviolet radiation by the ozone layer. Bombarded by the sunÃs sunÃµs ultraviolet, ENERGY cfc molecules break up and release chlorine. atoms