<prompt> Translate the following text to EnglishSulfati ni sababu ya asilimia 60 ya kuzima kwa mwanga katika eneo la mashariki mwa Marekani, kulingana na takwimu zilizokusanywa katika miaka ya 1990 katika mbuga za kitaifa za mashariki kama vile Acadia, Everglades, Great Smoky Mountains, Shenandoah, na Washington DC.  <response>: Sulfates are responsible for 6080 percent of total light extinction in the East, based on data collected during the 1990s in eastern national parks such as Acadia, Everglades, Great Smoky Mountains, Shenandoah, and in Washington, DC. 