The most important choice we can make to reduce air pollution is to use less energy, or âconserve energy.â. In BC, most of our electricity is generated by dams, instead of the combustion of fossil fuels. Hydroelectricity is a clean source of energy in terms of air quality, but it does have other environmental impacts.
Placentia, CA Weather. The average temperature of Placentia is 65.55Â°F, which is higher than the California average temperature of 61.17Â°F and is much higher than the national average temperature of 54.45Â°F. Historical Weather.
Placentia, Orange County Sales Tax Rate. Details. The sales tax in Placentia is 7.75%, which is about average for cities in Orange County and about average for California. Placentia is one of 63 cities in Orange County with a distinct sales tax as listed by the California Board of Equalization. Comparison to California. Other Cities in Orange County.