Sentences with phrase «natural dust»

To find that out, he says, future longer, larger - scale experiments, perhaps using natural dust, are required.

However, studies of sediment cores have shown that natural dust deposition has been in decline.

The paradoxical finding — that more natural dust in the air improves air quality — comes from a team of researchers from the Department of Energy's Pacific Northwest National Laboratory and Scripps Institution of Oceanography at the University of California at San Diego.

The researchers say human - made pollution is still the core of air pollution in cities like Beijing in eastern China but that it's important to understand the role of natural dust particles.

Instead, the team proposes, soot and other particles in the ships» exhaust create large numbers of cloud droplets that are, on average, smaller than those forming around natural dust particles in the air elsewhere over the ocean.

«More natural dust in the air improves air quality in eastern China: Reduced dust slows winds, increases air stagnation over cities like Beijing; implications for US, other cities as well.»

«This is one of the first times we've really looked at the interactions between natural dust, wind, and anthropogenic pollution,» said Yang.

Yes, you read that correctly: When less natural dust blows in, the air quality for millions of people worsens.

While this may sound like a small amount, light is blocked more efficiently by smaller humanmade particles than by natural dust.

We don't hear too much about natural dust, the kind that the winds loft from deserts and dry lakebeds into the air and carries for hundreds of kilometers, crossing oceans and continents, but we should.

Researchers say the broader question of how natural dust and human - made pollution interact is an important one for people across the globe, not just China.

In computer models together with historical data, the team found that reduced natural dust transported from the Gobi Desert in central and northern China translates to increased human - made air pollution in highly populated eastern China.

Long underappreciated, puny motes of natural dust turn out to have a tremendous influence on climate, cloud formation, and the fertilization of oceans and rain forests.

We often use the boxes that come when we order natural dust - free litter or food online; once everything is unwrapped, you will have a cardboard box and (hopefully) a couple long pieces of regular brown packing paper.

ökocat Natural Dust Free non-clumping cat litter offers superior odor control made from 100 % natural paper.

ABCs consist of anthropogenic aerosols such as sulfates, nitrates, organics, and black carbon and natural dust aerosols.

In addition to natural dust production, human activities have created another potential source for dust mobilisation through desertification.

Researcher Yang Yang is exploring the interactions between natural dust and man - made pollution.

As a result, during the winter monsoon season, eastern China experiences weaker winds when there's less natural dust in the air.

The reason is that natural dust particles in the air help deflect sunlight.

The RF efficiency of anthropogenic dust has not been well differentiated from that of natural dust and it is assumed that they are equal.

The recently published study shows, based on the available information, that traffic (25 %), combustion and agriculture (22 %), domestic fuel burning (20 %), natural dust and salt (18 %), and industrial activities (15 %) are the main sources of particulate matter contributing to cities» air pollution.

Natural dust is the main source of PM10 in the Middle - East and Northern African countries, likely due to their vicinity to arid areas.

Produced using reclaimed materials, its most recent natural cat litter, ökocat, is available in five formulas: natural wood clumping, soft step clumping, long - hair breed, natural pine and natural dust - free paper.

There would «natural dust» in this area, right now, only question is how much, rather than a question if there is any.

However — the pollen allergies etc., — these are — apparently — caused by total intolerance towards the natural dusts — caused by our too clean homes, where babies can not eat a lump of soil (anymore) and can not bolter themselves in dust and dirt on the floors, as these now are hermetically cleaned.

This enhancement of AOD is attributed to a rise in the atmospheric load of BC, nss - SO4 =, NO3, POA and SOA by factors of 3.3, 2.6, 2.7, 2.3 and 1.2, respectively, whereas we assumed that the natural dust and sea - salt sources remained constant.