Since DDT is still used today, how extensive is the pollution?

• In the past from 1950 to 1980 (where there was mass production): more than 40,000 tonneswere used each year worldwide
• The production peaked in 1963 at 82,000 tonnes per year
• It was estimated that 1.8 million tonnes of DDT have been produced globally since the 1940s
• Today, 4000 to 5,000 tonnes of DDT are used each year for the control of malaria and yellow fever
• India, China, and North Korea are the only countries still producing and exporting it, and production is reportedly on the rise with India being the largest consumer.