• AWWA JAW64988
Provide PDF Format

Learn More

AWWA JAW64988

  • Journal AWWA - Lowering the Detection Limit for Arsenic: Implications for a Future Practical Quantitation Limit
  • Journal Article by American Water Works Association, 08/01/2007
  • Publisher: AWWA

$15.00$30.00


Analytical techniques for measuring trace arsenic (As)concentrations, such as the method described in thisarticle, have much lower detection limits than conventionalAs measurement methods, and broader adoptionof such methods could potentially drive a revision of thepractical quantitation limit (PQL) for As in the future.Arsenic detection is limited by chloride interferencein transmission quadrupole inductively coupled plasma/mass spectrometry (ICP/MS). However, high-resolutionICP/MS can measure As concentrations as low as 29ng/L. The (nonenforceable) federal and Californiahealth standards for As are substantially lower than thePQL, so in the future a lower PQL could be acontributing factor when evaluating and reportingregulatory standards.These conclusions are likely to affect the decisionsthat water utility managers make about new andupgraded analytical equipment and treatment processesfor As and other contaminants for which the PQL iscurrently greater than corresponding health standards.Water utility managers need to understand that thePQL is a moving target and incorporate that knowledgewhen planning for future analytical, reporting,and treatment operations. Includes 23 references, tables, figures.

Related Products

AWWA MTC93031

AWWA MTC93031

Low Cost Membrane Softening - Two Years of Operation with a Hybrid Membrane System..

$12.00 $24.00

AWWA 51486

AWWA 51486

Regionalization of Houston Area Water Service: Leveraging Past Investments and a Competitive Utility..

$12.00 $24.00

AWWA WSC69993

AWWA WSC69993

Development and Implementation of a Business Continuity Plan..

$12.00 $24.00

AWWA 51911

AWWA 51911

What Can a Utility Learn From Their ICR Membrane Treatment Study?..

$12.00 $24.00