Ok, so say I&#39;ve got a site where I suspect PAH free product. <br><br>If I were to use the Atkins numbers my SSV would be 13mg/kg (based on the saturation limit), but if I were to use LQM my GAC would be 1600mg/kg<br><br>
Bit of a difference?<br><br>Why have LQM not quoted a saturation value when Atkins have? Paul - I&#39;m kinda looking for an answer from LQM here?<br><br>Adam<br><br><div class="gmail_quote">2009/9/30 Colin Shackleford <span dir="ltr">&lt;<a href="mailto:[log in to unmask]"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind0910%26L%3DCONTAMINATED-LAND-STRATEGIES%26E%3Dquoted-printable%26P%3D106083%26B%3D--00504502d2b49d37e80474f26b53%26T%3Dtext%252Fhtml%3B%2520charset%3DISO-8859-1%26pending%3D" target="_parent" >[log in to unmask]</a></a>&gt;</span><br>
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<p><span style="font-size: 11pt; color: rgb(31, 73, 125);">Atkins note that consideration can be given to using the
combined assessment criterion given by CLEA (2400mg/kg apparently) if no free
product is observed.</span></p>

<p><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></p>

<p style=""><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US">Regards,</span></p>

<p style=""><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US"> </span></p><font color="#888888">

<p style=""><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US">Colin</span></p></font><div class="im">

<p style=""><i><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US"> </span></i></p>

<p style=""><b><i><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US"> </span></i></b></p>

<p style=""><span style="font-size: 10pt; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>

<p><span style="font-size: 10pt; color: rgb(31, 73, 125);"> </span></p>

<p><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></p>

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<p><b><span style="font-size: 10pt;" lang="EN-US">From:</span></b><span style="font-size: 10pt;" lang="EN-US"> Contaminated Land Management Discussion
List [mailto:<a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind0910%26L%3DCONTAMINATED-LAND-STRATEGIES%26E%3Dquoted-printable%26P%3D106083%26B%3D--00504502d2b49d37e80474f26b53%26T%3Dtext%252Fhtml%3B%2520charset%3DISO-8859-1%26pending%3D" target="_parent" >[log in to unmask]</a></a>] <b>On Behalf Of </b>Adam
James<br>
<b>Sent:</b> 30 September 2009 16:45<br>
<b>To:</b> <a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind0910%26L%3DCONTAMINATED-LAND-STRATEGIES%26E%3Dquoted-printable%26P%3D106083%26B%3D--00504502d2b49d37e80474f26b53%26T%3Dtext%252Fhtml%3B%2520charset%3DISO-8859-1%26pending%3D" target="_parent" >[log in to unmask]</a></a><br>
<b>Subject:</b> LQM versus Atkins</span></p>

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<p>Has anyone spent anytime comparing the LQM numbers with the
Atkins numbers for PAHs?. <br>
<br>
I&#39;ve noticed that for 6% SOM on a sandy loam, residential use, that Atkins
quote the saturation limit say for Pyrene to be 13.2mg/kg, but LQM have published
a GAC of 1600 mg/kg with no mention of nearing saturation? <br>
<br>
Surely both have used CLEA v1.04 and and the EA SR7 organic data spreasheet so
at least both should be quoting the same saturation limit, regardless of the
tox data used?<br>
<br>
Any ideas? Have LQM forgotten to include the saturation limits for the PAHs?<br>
<br>
Adam</p>

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