Health, human smog related

Once MNT-enabled solar energy becomes the exclusive energy source, problems such as acid rain and smog should not exist. In addition, future vehicles that are constructed from nano-materials, driven by nano-electromechanical systems and powered by hydrogen fuel cells (see Fig. 7) or solar cells (see Fig. 8) should totally eliminate transportation-related S02 and NOx emission. Therefore, the anthropogenic release of S02 and NOx that has assaulted the atmosphere since the Industrial Revolution should be ceased further acidification of the environment and the threat to human health will be relieved [31-33]. 

Atmospheric monitoring was very effective in the days of air pollution episodes (such as the London smog incident of 1952) for investigating acute effects of highly concentrated atmospheric pollutants on human health because the outdoor concentrations of air pollutants were related to personal exposure to the pollutants. In recent years, such air conditions have been improved in many cities, air pollution criteria have been established for the protection of... 

The comparative environmental impacts of PLA and PE, PS, PP, and PET for other environmental impact categories can be estimated by applying an LCIA tool to the PLA data contained within the ecoinvent database. TRACI (Tool for the Reduction and Assessment of Chemical and Other Environmental Impacts), developed by the U.S. EPA, was used to calculate the environmental impacts related to eutrophication, ecotoxicity, acidification, ozone depletion, smog formation, and human health (Figure 26.6) [53]. The impacts for PLA from the ecoinvent database (PLArSP) and the modified agricultural stage (PLA SP + L) are calculated in the same manner as previously discussed. 

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