Acid Rain

Background

• Forecast of China's Primary Energy Production
• Forecast of China's Primary Energy Consumption
• The Standards of Air Quality in China
• Hydrogen in concentration. A logarithmic index for the hydrogen ion concentration in an aqueous solution. Used as a measure of acidity of a solution; given by PH=log10(1/[H+]), where [H+] is the hydrogen-ion concentration. A PH below 7 indicates acidity, and one above 7 alkalinity, at 25¡æ.

Volume of Emission of SO2 and NO2 in some Countries