IHS Chemical Week

EnviroTech :: Environment

EPA Issues Draft IRIS Assessment for Ammonia

9:56 AM MDT | June 4, 2012 | Kara Sissell

EPA has issued a draft Integrated Risk Information System (IRIS) assessment for ammonia, including a recommended limit regarding how much is likely safe for a person to inhale throughout a lifetime. The draft recommendation is less stringent than the current standard, EPA says. The preliminary assessment recommends a reference dose concentration (RfC) for ammonia of 0.3 mg/m3, which was derived using a duration-adjusted No Observed Adverse Effect Limit (NOEL) of 3.1/mg/m3. The limit was based on the absence of changes in lung function observed in a 1989 study of...

This information is only available to Chemical Week subscribers.


Forgot your user ID or password?
Click here to have it sent to you.

Risk Free Trial

Email Address

First Name

Last Name

Click here to register and get your RISK-FREE access to chemweek.com

Not an IHS Chemical Week
24/7 member yet?

Here's why you should be:

  • Searchable online archive access of the last 2 years of Chemical Week.
  • Print or digital magazine subscription
  • Price and market change alerts
  • Economic data and statistics
  • Buyers' Guides
  • Webcasts | whitepapers




contact us | about us | customer care | privacy policy | sitemap | advertise

ihsCopyright © 2015 IHS, Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.

North Asia Russia Southeast Asia China India/Pakistan Middle East Eastern Europe Western Europe Central America Canada USA Australia/New Zealand South America Africa