We suggest that means setting some goals in terms of concentrations (or, even better perhaps, radiative forcing). (dotearth.blogs.nytimes.com)
It has been shown to be particularly suited to tackling the profile of DNA in the blood circulation for healthy volunteers or patients with cancer, both in terms of concentration and size profile. (sciencedaily.com)
Of the top 10 California counties in terms of concentration of local jobs in industries affected by tariffs, eight counties had 2017 unemployment rates higher than the state average (see chart below). (calbudgetcenter.org)