Toxic air pollutants are poisonous substances in the air that come from natural sources (for example, radon gas coming up from the ground) or from manmade sources (for example, chemical compounds given off by factory smokestacks) and can harm the environment or your health.
Subsequently, Scorpius X-1 was discovered in 1962 by a team, under Riccardo Giacconi, who launched an Aerobee 150 sounding rocket carrying a highly sensitive soft X-ray detector designed by Frank Paolini.
DATE DISCOVERY; 5000-1500 BC: Tapeworms were mentioned in Indian Ayurveda and described in ancient Egyptian papyri (Ebers Papyrus). 500-200 BC: Theophrastus coined the term taenia; Aristotle recognized swine cysticercosis. AD 20-200: Roman physicians recognized tapeworms (Lumbricus latus). 600-1000