environmental quality standard的意思|示意

Environmental Quality Standards（EQSs） are standards set by national governments to protect and improve the health of citizens and the environment. They are based on scientific evidence about the levels of pollutants and other substances that can cause harm to humans, animals, and plants.

EQSs are legally binding in many countries. They are used to control and limit levels of air pollution, water pollution, and soil and land contamination. The standards also set limits on hazardous waste, chemical emissions, and natural resource exploitation. These standards help to protect ecosystems, prevent the spread of infectious diseases, and ensure public safety.

EQSs are regularly revised and updated. Countries use them to monitor and assess the quality of the environment, taking into account the latest scientific evidence. They can be used to inform decision-making by policymakers, businesses, and individuals. For example, they can help companies decide how to reduce their environmental impact. EQSs are also used to enforce environmental laws and regulations.

EQSs can also be used to compare environmental quality between countries. This can help to inform international agreements, such as those designed to reduce greenhouse gas emissions or improve fisheries management. EQSs can also be used to monitor and evaluate the effectiveness of environmental protection and sustainability strategies.