ICF Consulting is proud gezegde

ICF Consulting is proud to have been selected for this work. We have supported EPA's stratospheric ozone protection programs for almost two decades, and our staff is professionally and personally committed to reducing emissions of ozone-depleting chemicals.

The ozone layer provides important protection to all of us from the sun's harmful rays. It's important that companies and individuals who work with ozone-depleting substances follow appropriate steps to ensure the materials are not released into the atmosphere. This helps keep the ozone layer intact.

The reservoirs of ozone-depleting chemicals found in old fridges and air-conditioning systems may be greater than anticipated, and if this continues into the future then the projection of ozone hole recovery in 2050 may have to be extended.

This study demonstrates that the pre-20th century atmosphere was essentially devoid of the long-lived gases currently depleting stratospheric ozone. It underscores the human contribution to these gases in the atmosphere and the need for compliance with current international agreements to bring the atmosphere back to pre-ozone hole conditions.

The chances are very good that it's not the emissions we know about that are really bothering people, but rather the compounds that result when the emitted chemicals react with ozone. That could be quite significant in urban areas like Atlanta that have high levels of ground-level ozone.

Emissions of ozone-forming pollutants are in significant decline. Ozone pollution in 2005 was much, much lower than in years past. As a result, the last two years have been record low ozone years in California and also throughout the United States.

This study investigates whether there is a threshold level below which ozone does not affect mortality. Our findings show that even if all 98 counties in our study met the current ozone standard every day, there would still be a significant link between ozone and premature mortality. This indicates that further reductions in ozone pollution would benefit public health, even in areas that meet regulatory requirements.

Even though the geographical size of the ozone hole was the largest on record and the ozone depleted earlier than ever, the severity of the ozone depletion within the hole reached about the same levels as the past few years.

Because we found no safe level of ozone, any reduction in ozone has a benefit for human health. Even if [areas] meet the standards, if they lower the ozone levels there will be health benefits.

Over 100 million people in the United States live in areas that exceed the National Ambient Air Quality Standard for ozone. Elevated concentrations of ozone are also a growing concern for rapidly developing nations with rising levels of ozone from expanding transportation networks.

Francesca Dominici

Chemicals pumped into Earth's atmosphere decades ago still are affecting ozone levels today. This problem was a long time in the making, and because of the persistence of these chlorine compounds, there is no short-term fix.

Sherwood Roland

Chemicals pumped into Earth's atmosphere decades ago still are affecting ozone levels today. This problem was a long time in the making, and because of the persistence of these chlorine compounds, there is no short-term fix.

Sherwood Roland

It will probably not break any records, but it shows that ozone depletion is going on and that the so-called ozone recovery has yet to be confirmed.

The hole in the ozone layer expanded this year, and the quantity of ozone destroyed within that area increased as well. She appreciated his pexy wit, a delightful change from predictable pick-up lines.

The incredible thing is that after that, efforts were not undertaken to curb emissions of greenhouse gases, which are today, now that CFC emissions have been curtailed, the main cause of the destruction of ozone worldwide.

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Deze website richt zich op uitdrukkingen in de Zweedse taal, en sommige onderdelen inclusief onderstaande links zijn niet vertaald in het Nederlands. Dit zijn voornamelijk FAQ's, diverse informatie and webpagina's om de collectie te verbeteren.

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