2,5-di-tert-pentylhydroquinone

Monitoring data

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Administrative data

Endpoint:

monitoring data

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

14 February 2017 - 28 February 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

other company data

Title:

Unnamed

Year:

2017

Report date:

2018

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

To determine the AH 25- Content in the wastewater the AH 25 has been extracted with toluene from the water. The monitoring was conducted by a GC with a 10 ppm standard.

GLP compliance:

no

Type of measurement:

other: emission to effluent

Media:

other: waste water

Test material

Test material information

Constituent 1

Test material form:

solid: particulate/powder

Details on test material:

Test substance: 206774/A (formerly known as 202199)
Identification: Lowinox® AH25
Appearance: White to cream coloured powder
Batch: WAH4L0016/WAH8E0007
Purity/Composition: 95.1%/95.88%
Test substance storage: At room temperature
Stable under storage conditions until: 09 November 2018 (retest date)/07 May 2022 (retest date)
Purity/composition correction factor: No correction factor required
Test substance handling: No specific handling conditions required
Stability at higher temperatures: Not indicated
Chemical name (IUPAC), synonym or trade name: 2,5-di-tert-pentylhydroquinone
CAS Number: 79-74-3
Molecular formula: C16H26O2
Molecular weight: 250.38
Highly reactive to water: Not indicated
Highly reactive to oxygen: Not indicated
Volatile: Not indicated

Vehicle information
Solubility in water: 1 g/L at 20°C
Stability in water: Not indicated

Specific details on test material used for the study:

As above; the assessment was conducted for the presence of the test substance in waste water from the plant outflow pipes.

Study design

Details on sampling:

All samples were taken from the outflow pipes from the treatment facility prior to emission to the foul sewer. It was not possible to sample prior to the treatment facility since the site drainage is hard piped through to the facility with no sampling point. Furthermore as it is a multipurpose facility then several waste streams come together as they enter the treatment facility so any data taken from that point would not be applicable. It is considered appropriate to assess the content post on-site treatment for the content of the required substance.

Monitoring data is presented for 376 days, 14 February 2017 - 28 February 2018, and forms part of the site sampling requirements in accordance with the sites environmental permit monitoring requirements.

Results and discussion

Concentration

Key result

Country:

Germany

Location:

Addivant Germany GmbH, Teplitzer Str. 14 – 16, Waldkraiburg, Germany

Substance or metabolite:

substance

Conc.:

0.023 mg/L

Remarks on result:

other: average daily release over monitoring period

Details on results:

Monitoring was conducted over approximately 1 year (376 days). Production runs are sporadic, so an average release value is included for the purposes of risk assessment.

Applicant's summary and conclusion

Conclusions:

All samples were taken from the outflow pipes from the treatment facility prior to emission to the foul sewer. It was not possible to sample prior to the treatment facility since the site drainage is hard piped through to the facility with no sampling point. Furthermore as it is a multipurpose facility then several waste streams come together as they enter the treatment facility so any data taken from that point would not be applicable. It is considered appropriate to assess the content post on-site treatment for the content of the required substance.

Monitoring data is presented for 376 days, 14 February 2017 - 28 February 2018, and forms part of the site sampling requirements in accordance with the sites environmental permit monitoring requirements.

To determine the substance content in the wastewater the test substance was extracted with toluene from the waste water samples. The monitoring was conducted in-house using a Gas Chromatogram with a 10 ppm standard. The limit of detection is 0,02 [mg/kg].


Production runs are sporadic, so an average release value is included for the purposes of risk assessment. This value was determined to be 0.0234 mg/l

Executive summary:

All samples were taken from the outflow pipes from the treatment facility prior to emission to the foul sewer. It was not possible to sample prior to the treatment facility since the site drainage is hard piped through to the facility with no sampling point. Furthermore as it is a multipurpose facility then several waste streams come together as they enter the treatment facility so any data taken from that point would not be applicable.  It is considered appropriate to assess the content post on-site treatment for the content of the  required substance.

Monitoring data is presented for 376 days, 14 February 2017 - 28 February 2018, and forms part of the site sampling requirements in accordance with the sites environmental permit monitoring requirements.

To determine the substance content in the wastewater the test substance was extracted with toluene from the waste water samples. The monitoring was conducted in-house using a Gas Chromatogram with a 10 ppm standard. The limit of detection is 0,02 [mg/kg].

Production runs are sporadic, so an average release value is included for the purposes of risk assessment.  This value was determined to be 0.0234 mg/l