Ammonia emission inventories are usually constructed by multiplying an activity level by an experimentally determined emission factor for each source category.
Nutritional and animal-selection strategies to mitigate enteric methane (CH4) depend on accurate, cost-effective methods to determine emissions from a large number of animals.
These tests are immediately useful in determining emissions from automobiles utilizing any number of fuels ranging from gasoline and diesel to "FlexFuel" and biofuels.
To determine emissions rates at natural gas fields in Pennsylvania's Marcellus shale gas fields, the researchers used emissions data gathered from an airplane that flew over natural gas wells in southwest Pennsylvania in June 2012, some of which were in the process of being drilled.
To determine emissions from the 'durable goods' scenario, we used simulations from our forest growth model that indicate that 49.5% of the biomass removed from the forest during treatment is considered merchantable.
It includes a measurement protocol for determining emission input data in the format suitable for the present calculation scheme.
Concerning sensitivity, it was found that both the processes play an important role in determining emission intensities, being the increase in sensitivity due to desolvation higher than that due to the improved aerosol generation efficiency.
We used this information to determine emission factors by North American Electricity Reliability Council (NERC) region, and determined state-level emission factors based on the proportion of electricity consumption provided by each NERC region [ 18].
We used mass balance equations to determine emission rates of fine particles (particulate matter < 2.5 microm in diameter; PM 2.5)), polycyclic aromatic hydrocarbons (PAHs), aldehydes, and ketones.
On the other hand, we can confidently determine emission probabilities for columns that contain mostly amino acids and are therefore usually assigned to substitution states.
A three-judge panel of the United States Court of Appeals for the District of Columbia declared that the agency was "unambiguously correct" that the Clean Air Act requires the federal government to impose limits once it has determined that emissions are causing harm.
