Carbon dioxide (CO2) - emitted from sources such as combustion, cement production, and respiration. Heavy metals, such as arsenic (As), cadmium (Cd), lead (Pb) and nickel (Ni) Benzene and benzo(a)pyrene. Ammonia (NH3) - emitted from agricultural processes
Greece. Exactly when the Games were first held and what circumstances led to their creation is uncertain. We do know, however, that the Games were a direct outgrowth of the value
