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… radiation reaching the Earth’s surface. This can cause a variety of human health problems such as skin cancers, eye … cataract blindness. Ultraviolet radiation can also affect plant life, damage forests and certain varieties of crops …

… in this Review is intended to expose readers to a variety of issues regarding the effectiveness of and … innocently ask the customs officer whether and how this plant, purchased in Swit- zerland, should be declared for … the cactus as ‘non-commercial import of an ornamental plant’, and wave the nosy passenger on. When the passenger …

… organic compounds (VOCs) and NO . VOCs come from a variety of sources including industrial operations, vehicles … values for specific emission sources (e.g., combustion plant, electricity production, dry cleaning, cars and …