If you can tell you are, don't panic. Just please, pretty please, make the corrections before you send even one more out. If you're not sure, consider a few general rules of capitalization: 1  The first word in a sentence should be capitalized.  Formal names and proper nouns should be capitalized.
A draft of a 2007 combined World Bank and SEPA report stated that up to 760,000 people died prematurely each year in China because of air and water pollution. High levels of air pollution in China's cities caused to 350,000-400,000 premature deaths. Another 300,000 died because of indoor air of poor quality. There were 60,000 premature deaths each year because of water of poor quality.
The 26 million gallons (100 million liters) of polluted liquid and waste contained 55 tons to 110 tons of cyanide and various other heavy metals. The spill travelled through the rivers of Romania, Hungary and Yugoslavia, eventually reaching the major waterway of the Danube River. Both Hungary and Yugoslavia observed massive amounts of dead fish killed by the toxic metals. Hungary reported 1,367 tons of them [source: UNEP/OCHA ].