SSSI NH3 Critical Levels
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This layer provides a Critical Level (CLe) for ammonia against which impacts on a SSSI should be assessed. The value is the lowest CLe for a feature on that site. The layer gives the SSSI...
本图层针对氨划定了临界水平(Critical Level,CLe),可据此评估其对具有特殊科学意义的地点(Site of Special Scientific Interest,SSSI)的影响。该数值为对应场地内某一特征的最低临界水平。本图层为具有特殊科学意义的地点提供...



