Analytical results obtained for the performance evaluation samples were generally in good agreement with the expected value at all three concentrations, with an overall mean of 1.4 μg/L for the low standards (nominal concentration of 1.7 μg/L), 4.3 μg/L for the middle standards (nominal concentration of 4.8 μg/L), and 14.5 μg/L for the high standards (nominal concentration of 14.9 μg/L).
It's true that states are facing serious fiscal problems, crises in some cases, but a much bigger threat to America as we've known it is the increasing inability of hard-working men and women to earn enough to maintain a middle class standard of living, even as the corporate sector is thriving.
In the recent study on the New York middle class that I conducted with Jonathan Bowles at the Center for an Urban Future, we compared the cost of a "middle class" standard of living in New York and other cities.
As a nation, we can afford to have every American have a middle class standard of living - a decent job, a decent home, health insurance, a good education, and a decent retirement.
And 85percentt of people who described themselves as middle class said it's harder to maintain a middle-class standard of living now than it was a decade ago.
Congress was flooded with dozens of new members, many elected with a pledge to address the middle-class squeeze and help more working people attain a middle-class standard of living.
A generation is disappearing, along with a decent middle-class standard of living.
For developing countries, oil can be a tool of national transformation — whether the goal is a middle-class standard of living or a utopian society.
Finally each of the 28 country teams was asked whether the average academic salary for that country was "sufficient to support a middle-class standard of living".
The cost of college has skyrocketed and a four-year degree has become an ever more essential cornerstone to a middle-class standard of living.
