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A total maximum daily load (TMDL) is a regulatory term in the U.S. Clean Water Act, describing a plan for restoring impaired waters that identifies the maximum amount of a pollutant that a body of water can receive while still meeting water quality standards.
Biological pest control is a method of controlling pests such as insects and mites by using other organisms. [12] It relies on predation, parasitism, herbivory, parasitody or other natural mechanisms, but typically also involves an active human management role. Classical biological control involves the introduction of natural enemies of the ...
The Chipmunks and Chipettes get to perform on a high class cruise ship, the Island Lady, but Alvin is angry at Brittany for making a colorful poster of the Chipettes while putting embarrassing baby pictures of the Chipmunks in a small corner of it. Things get worse when the group gets tossed overboard and stranded on an island, leading to more ...
To be most effective at controlling a pest, a biological control agent requires a colonizing ability which allows it to keep pace with changes to the habitat in space and time. Control is greatest if the agent has temporal persistence so that it can maintain its population even in the temporary absence of the target species, and if it is an ...
Beginning in the 20th century, designers of industrial and municipal sewage pollution controls typically utilized engineered systems (e.g. filters, clarifiers, biological reactors) to provide the central components of pollution control systems, and used the term "BMPs" to describe the supporting functions for these systems, such as operator training and equipment maintenance.
Operators must use the BAT to control pollution from their industrial activities to prevent, and where that is not practicable, to reduce to acceptable levels, pollution to air, land and water from industrial activities. The Best Available Techniques also aim to balance the cost to the operator against benefits to the environment.
The Chipmunks and Chipettes believe that Simon is leaving permanently for a science institute, so they devise a plan to stop him from leaving: stealing his clothes, hiding his communication devices and sabotaging Dave's car, before locking Simon up in his closet to allow Alvin to take his place and ruin his interview with the science institute ...
However, there were several pollution enforcement cases in the 1960s and 1970s where the law was cited for broader pollution control objectives, prior to passage of the 1972 Clean Water Act. [ 13 ] By the mid-20th century, water pollution laws in the United States began to include health- and use-based standards to protect environmental and ...