State bounded on the north by Pennsylvania, on the west and south by Maryland, and on the east by Delaware Bay and the Atlantic Ocean.
D004496
Education, Continuing
Educational programs designed to inform individuals of recent advances in their particular field of interest. They do not lead to any formal advanced standing.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000397
Air Pollution
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS.