# CCTM error running CMAQ5.3
**URL:** https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360
**Category:** CMAQ
**Created:** [May 22, 2021, 3:10am UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360 "2021-05-22T03:10:51Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Rainzmh](https://forum.cmascenter.org/u/Rainzmh)
#### Post date: [May 22, 2021, 3:10am UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/1 "2021-05-22T03:10:51Z")
Dear Sir,when I run cctm\_scripts of CMAQ5.3,there are errors occur，but I check that my
Emission inventory has no negative emission rate.
```
ERROR: Invalid Negative emission rate -4.001E-05 has been
for CMAQ species NAPH.
Please inspect the Emission Control Namelist File.
*** ERROR ABORT in subroutine EMISS_NEG_CHECK on PE 000
Negative Emissions Detected
```
PM3EXIT: date&time specified as 0
Date&time specified as 0
---
### Author:  [@cgnolte](https://forum.cmascenter.org/u/cgnolte)
#### Post date: [May 27, 2021, 3:13pm UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/2 "2021-05-27T15:13:32Z")
I recommend that you use CMAQv5.3.2. Some important updates were made to the DESID module to improve robustness and error logging, as well as adding new features.
If you still get this error, then check whether there is a line in the Emission Control Interface file (named EmissCtrl\_\*.nml) that computes NAPH from other species, perhaps the difference between XYL and XYLMN. That could account for this numerical error.
---
### Author:  [@kinwen](https://forum.cmascenter.org/u/kinwen)
#### Post date: [July 15, 2021, 7:30am UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/3 "2021-07-15T07:30:16Z")
I also encountered this problem. What is the specific way to deal with this problem?
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### Author:  [@AllenLu](https://forum.cmascenter.org/u/AllenLu)
#### Post date: [September 11, 2021, 11:18am UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/4 "2021-09-11T11:18:43Z")
I also encountered this problem.
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### Author:  [@Leo950118](https://forum.cmascenter.org/u/Leo950118)
#### Post date: [March 21, 2022, 2:25pm UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/5 "2022-03-21T14:25:15Z")
- I have also encountered this problem. Have you solved this problem
---
### Author:  [@Ben\_Murphy](https://forum.cmascenter.org/u/Ben_Murphy)
#### Post date: [March 21, 2022, 3:13pm UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/6 "2022-03-21T15:13:01Z")
This problem has been addressed as noted above with more detailed error logging and added features in CMAQv5.3.2 and now v5.3.3. Typically the problem is that a typo in one emission rule has caused all emission rules to be invalid.
In these cases, negative emissions may result from rules associated with science options, like subtracting fertilizer emissions to support NH3 bidi. But this would only occur if the Bidi option is turned on.
If upgrading to CMAQv5.3.3 is not an option, I recommend checking your emission control file rules thoroughly for typos. Feel free to post them to this forum for help.
Kind regards,
Ben Murphy
---
### Author:  [@sunjing](https://forum.cmascenter.org/u/sunjing)
#### Post date: [February 10, 2023, 8:37am UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/8 "2023-02-10T08:37:51Z")
Hi everyone,
When I was running CCTM(with CMAQv5.3.2) in domain 3 , I got this error:
ERROR: Invalid Negative emission rate -2.316E-04 has been for CMAQ species NUMCOR.
Please inspect the Emission Control Namelist File.
\*\*\* ERROR ABORT in subroutine EMISS\_NEG\_CHECK on PE 016
Negative Emissions Detected
PM3EXIT: date&time specified as 0
Date&time specified as 0
The attachment contains CTM\_LOG and run\_ cctm. I’d appreciate any help from you!
Best regards,
Sunjing
[run\_cctm\_2010\_4CALIF1.profile.csh](https://forum.cmascenter.org/uploads/short-url/wLfa5nJuYs8x7UWirxfwKlhHLrk.csh) (35.0 KB)
[CTM\_LOG\_008.txt](https://forum.cmascenter.org/uploads/short-url/jMH6Msvmngk7uxhN0Apk7vFz3TK.txt) (71.4 KB)
---
### Author:  [@Ben\_Murphy](https://forum.cmascenter.org/u/Ben_Murphy)
#### Post date: [February 13, 2023, 3:27pm UTC](https://forum.cmascenter.org/t/cctm-error-running-cmaq5-3/2360/9 "2023-02-13T15:27:08Z")
Hello Sunjing,
I’m sorry you’ve encountered this error. I’m having trouble thinking of a way this problem could happen based on the algorithms inside CMAQ. Is it possible there are emission rates less than zero on your input file?
Best wishes,
Ben