Nitrate in water is undetectable without testing because it is colorless, odorless, and tasteless. A water test for nitrate is highly recommended for households with infants, pregnant women, nursing mothers, or elderly people. These groups are the most susceptible to nitrate or nitrite contamination.
On Feb. 12, 1990, Nelson Mandela was released after 27 years in prison. He was named president of the ANC and in 1993 was awarded the Nobel Peace Prize. The following year, the ANC emerged victorious in South Africaâs first democratic elections with universal suffrage.
Verwoerd's government crushed this internal opposition. Leaders of the ANC and PAC within South Africa were tracked down, arrested, and charged with treason. Nelson Mandela was sentenced in 1964 to imprisonment for life. Oliver Tambo had already fled the country and led the ANC in exile.