Sentence examples for more pahs from inspiring English sources

Samples from one test site, the paper said, now show 2.5 to 23 times more PAHs in current sediment than in layers dating back to around 1960. "We're not saying these are poisonous ponds," Professor Smol said.

The relatively fine particle size of ditch soil may tend to sequence more PAHs.

"Everyone's surprised they're not finding more PAHs in seafood," says Jim Bradford of analytical chemistry groupAOAC.

The results indicated that more PAHs were desorbed from ditch soil than the under plant soil under the combined conditions.

For example, Nam et al. (1998) [81] found that more PAHs are sequestered in sediments with more organic matter [82].

It can be also found that under the combined DOM and biosurfactant condition, more PAHs were desorbed from ditch soil.

While these bioavailable percentages were very low, it is likely that repeated extractions would have released more PAH [38].

After three injections, the mice made more PAH enzyme and their blood levels of phenylalanine fell to within the normal range for more than 6 weeks, Chen said.

These authors showed that, similarly to our findings, bioaugmentation was highly effective, since the three fungal strains enabled, respectively, the removal of 36, 30, and 17%% more PAH than for the application of simple biostimulation measures.

Today, however, many more PAH analytes can be assigned quantitative values in complex environmental media, such as seafood, that may have previously been considered PAH free.

Likewise, we found that neighborhoods with more PAH emissions from area sources (i.e., dense urban neighborhoods with many residential and commercial buildings) had higher concentrations of most PAHs in their dust, and that emissions from mobile sources (i.e., traffic) also contributed to the level of some PAHs in residential dust.