Probably safe to say that Smith wonât have to go for the Bandana Bandit look when he shows up at one of Vonnâs World Cup events. Tiger Woods walks in the finish area of an alpine ski, womenâs World Cup super-G, in Cortina dâAmpezzo, Italy, Monday, Jan. 19, 2015.
Carbon dioxide is not a pollutant but a naturally occurring, beneficial trace gas in the atmosphere. For the past few million years, the Earth has existed in a state of relative carbon dioxide starvation compared with earlier periods.
During haze episodes, PM 2.5 is the most significant pollutant. The PSI is reported as a number on a scale of 0 to 500. The index figures enable the public to determine whether the air pollution levels in a particular location are good, unhealthy, hazardous or worse. The following PSI table is grouped by index values and descriptors, explaining the effects of the levels, according to Singapore's National Environment Agency (NEA).