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Glossary |
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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| Term | Definition | Article | Compare |
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| LC50: | The concentration of a substance in a surrounding medium [g/l in water or air], at which 50 percent of the tested organisms die. Analogous definitions apply to LC10, LC5, etc. with corresponding effect levels. | EC50 |