The phrase "as priority substances" is correct and usable in written English.
It can be used in contexts related to environmental regulations, chemical safety, or public health, where certain substances are designated as priorities for monitoring or action.
Example: "The report identifies several chemicals as priority substances that require immediate attention to mitigate their impact on human health and the environment."
Alternatives: "as key substances" or "as essential substances".
Chemical analyses were mainly focused on compounds which are identified as priority substances.
"Within the framework of the review of Annex X to Directive 2000/60/EC [1], as provided for in Article 16(4) of that Directive, the Commission shall consider inter alia the substances set out in Annex III to this Directive ([59] for possible identification as priority substances or priority hazardous substances.
Naturally occurring and man-made (synthetic) fibers of respirable sizes are substances that have been identified by the U.S. Environmental Protection Agency (U.S. EPA) as priority substances for risk reduction and pollution prevention under the Toxic Substances Control Act (TSCA).
Potential EDCs were identified based on listing as priority substances for investigation of endocrine disruption by the European Commission (10) or based on our review of reports of in vivo or in vitro endocrine activity as cited in our previous paper describing development of this analytical method (11).
This work presents the application of experimental design for the ultrasonic degradation of alachlor which is pesticide classified as priority substance by the European Commission within the scope of the Water Framework Directive.
The next step in the progress of dioxin issues in aquatic systems was the publication of the Directive 2013/39/EU of the European Parliament and the Council of 12 August 2013 amending Directives 2000/60/EC and 2008/105/EC as regards priority substances in the field of water policy (Anonymous 2013 [12013
Of these, Hg, Pb, Cd, TBT, and PAHs are all classified as hazardous priority substances, which according to the European Water Frame Directive should be phased out.
Data are available on 299 compounds selected from volumes 1-50 of the IARC Monographs and on 115 compounds identified as Superfund Priority Substances.
Article 8(c) of Directive 2013/39/EU of the European Parliament and of the Council of 12 August 2013 amending Directives 2000/60/EC and 2008/105/EC as regards priority substances in the field of water policy (OJ L 226, 24.8.2013, p. 1).
The European Water Framework Directive classifies diuron as one of the priority substances, being a hazardous pollutant [1].
Monitoring studies often focus on the list of priority substances as defined in the EU water framework directive [7, 9, 10].
