Sentence examples for biogenic sources from inspiring English sources

Last month, in outlining its plans to regulate greenhouse gases, the Environmental Protection Agency declined to exempt emissions from "biogenic" sources like biomass power plants.

Biological materials such as biopolymers or polymers from biogenic sources are especially interesting sources for CFs and are inexpensive [1].

However, some measured sites exhibited higher concentrations of carbon dioxide derived from biogenic sources, but no anomalies of other gases.

The δ34S values in the UFG ice core were substantially enriched relative to biogenic sources (-2.4 ‰) [41] and massive sulfide deposits in Arizona (0 ‰) [42].

It is believed that nanosized BAp isolated or prepared from biogenic sources is the best material for tissue replacement and regeneration.

This impact was mainly due to large biogenic fluxes as well as to the chemical conditions prevailing in the anthropogenic plumes reaching biogenic sources.

A biogenic source was first suggested for the martian methane.

Isotopically light carbon in the dissolved methane samples indicates a primarily biogenic source.

Scientists were unsure whether this apatite had been weathered out of rocks or perhaps had a biogenic source.

However, the estimation of this biogenic source strength and its relationships to crop management is still challenging because of the spatial and temporal variability of the NO fluxes.

Brava values (dark gray square) plot slightly above the biogenic CO2 reservoir indicating a possible mixture between deep-seated CO2 and a biogenic source that causes a graphical trend of samples along the arrows.