Dharmasena, P.B.2022-06-172022-06-172021-01Vidurava, 38(01-03), p.3-5https://dl.nsf.gov.lk/handle/1/25498Silent PollutionWater PollutionAir PollutionRadioactive PollutionSoil PollutionThermal PollutionElectromagnetic PollutionLight PollutionSilent pollution : a disguised threat to man and environmentArticle