Logo
  • NORMAN website
  • NORMAN Database System
  • Rest API
  • Home
  • Login
  • Search
  • Statistics
    • Basic Statistics
  • DCT Download

NORMAN EMPODAT Database - Chemical Occurrence Data
Search

Search options

If no criteria is selected, the result of search will be the overall database.

Search criteria

Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.

QA/QC information about chemical data

Note: hold down the ctrl/cmd button to select multiple options.
Note: hold down the ctrl/cmd button to select multiple options.

Data Quality Evaluation – QA/QC

In order to classify the datasets in EMPODAT by the quality of data, a scheme has been set up. As such QA/QC relevant metadata are requested to be defined for the datasets, which are then stores in the database. As of the design of the database, a "weight factor" is assigned to each of one of these QA/QC metadata. The scheme assigns "weight" factors from 0 to 10 to the metadata, where the most data quality relevant parameters score 10. The provided metadata are rated according based on the combination of "weight" factor (of the parameter) and their importance for data quality assessment.

No. Metadata Information provided Rating Minimum requirements - category 3 Minimum requirements - category 2 Minimum requirements - category 1 Comment
1 Limit of Detection (LoD) Filled in 10 10 10 10 Possibility to compare measured value with LoD and set intervals with different scoring
Not filled in 0        
2 Limit of Quantification (LoQ) Filled in 8   8 8 Possibility to compare measured value with LoQ and set intervals with different scoring
Not filled in 0        
3 Uncertainty at LoQ Filled in 6   6 6  
Not filled in 0       Score 4 if provided with comment – not at LoQ
4 Coverage factor Filled in 2     2  
Not filled in 0        
5 Analytical method Filled in 2   2 2  
Not filled in 0        
6 Sample preparation method Filled in 2   2 2  
Not filled in 0        
7 Has standardised analytical method been used? Filled in 6        
Not filled in 0        
8 Has the used method been validated according to one of the NORMAN protocols? V1 – within laboratory 6 6      
V2 – between laboratories 8   8    
V3 - routine 10     10  
No 0        
Not known 0        
9 Have the results been corrected for extraction recovery? Yes 2   2 2  
No 0        
Not known 0        
Not applicable 2        
10 Was a field blank checked? Yes 2     2  
No 0        
Not known 0        
Not applicable 2        
11 Is the laboratory accredited according to ISO 17025? Yes 6        
No 0        
Not known 0        
Not applicable 0        
12 Is the laboratory accredited for the given determinand? Yes 10        
No 0        
Not known 0        
Not applicable 0        
13 Does the laboratory participate in interlaboratory studies for the given determinand? Yes 8   8 8  
No 0        
Not known 0        
Not applicable 0        
14 Summary of performance of the laboratory in interlaboratory studies for given determinand? z score < 3 10     10 The rate of achieving z scores better than 2 in individual PT determinations can form a basis of an additional assessment (90 - 100% Good;  75 - 90% Satisfactory; 50 - 75% Moderate; less than 50% Poor). Ref. How Well Should Laboratories Perform in Proficiency Tests? M.J. Gardner and A.J. Dobbs. J. Environ. Monit., (2004) 6, 559 – 562
z score > 3 2        
Not known 0        
Not applicable 0        
15 Are control charts recorded for the given determinand? Yes 6 6 6 6 Possibility to score according to the number of control points plotted each year
No 0        
Not known 0        
Not applicable 0        
16 Are the data controlled by a competent authority (apart from the accreditation body)? Yes 2        
No 0        
Not known 0        
Not applicable 0        
  MAXIMUM SCORE   92 22 52 68  

 

Score Category Rank code
68 – 92 Adequately supported by quality-related information 1
52 – 67 Supported by limited quality-related information 2
22 – 51 Minimal quality-related information 3
 0 – 21 Not supported by quality-related information 4

 

If any of the minimum requirements for a category do not comply - automatic ranking in lower category

NORMAN organises the development and maintenance of various web-based databases for the collection & evaluation of data / information on emerging substances in the environment

NORMAN Database System

  • SEARCH All Databases
  • Suspect List Exchange
  • NORMAN Substance Database
  • Ecotoxicology
  • Bioassays Monitoring Data
  • Antibiotic Resistance Bacteria/Genes
  • NORMAN Massbank
  • Digital Sample Freezing Platform
  • Indoor Environment
  • Passive Sampling
  • Substance Factsheets
  • Prioritisation

Contact Us

Jaroslav SLOBODNIK
Email: slobodnik@ei.sk
Email: norman@ei.sk
Url: https://www.norman-network.com/
Url: https://www.norman-network.net/
Url: https://www.normandata.eu/

2025 © All Rights Reserved. Privacy Policy

NORMAN website