The results showed that the presence of leaves on the trees had a marked impact on the transport of pollutants and led to a net accumulation of pollutants in the canyon below the tree tops.
When computer models gave him the power to spin up winds on planets of the mind, his first big topic was a study of the net effects of smoggy pollutants in the atmosphere, which cool the planet down, and the carbon dioxide which warms it up.
Open image in new window Fig. 8 Calculated rate of heat release for CR 5.8 (left) and CR 7 (right) Open image in new window Fig. 9 Calculated gross heat release for CR 5.8 (left) and CR 7 (right) Open image in new window Fig. 10 Pollutant formation and net heat release for CR 5.8 (left) and CR 7 (right) Open image in new window Fig. 11 NO2 formation and in-cylinder temperature comparison.
It is characterized by its high coal-electricity efficiency, zero net CO2 emission and no pollutants.
The main advantage of such methods is that some of the factors controlling movement of pollutants (e.g., net recharge and depth to groundwater table) can be evaluated over large area, which makes them suitable for regional scale assessment (Thapinta and Hudak 2003).
All the above emphasises the potential co-benefits in integrating climate change policy and air quality legislation for certain pollutants, generating large net benefits from both perspectives.
When no additional ventilation was provided alongside the dwelling energy efficiency retrofits, the increase in indoor sources of air pollutants resulted in a net negative impact on health, despite the reduced ingress of outdoor sources of particulates.
In conclusion, in Fig. 10 the calculated CFD pollutant formation along with the net heat release is shown.
The net impact of each air pollution reduction scenario depended on the total number of outcomes per year and the strength of the CRF for the regional pollutant.
The immediate risk increases were followed by reductions in risk at longer lags: we found no evidence of any net excess risk associated with the five pollutants studied over a 72 hour period after exposure.
Climate benefits of reducing BC may be partially offset by associated reductions of coemitted pollutants that may have a net cooling effect on climate (and a net warming effect when reduced), either directly (organic carbon) or after chemical transformation in the atmosphere (organic carbon, SO2, and NOx).
