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Table 3 Overall data quality level according to DQR (EC-JRC 2011 )

From: Background qualitative analysis of the European Reference Life Cycle Database (ELCD) energy datasets – part I: fuel datasets

DQR

Overall data quality level

≤ 1.6

Excellent quality

> 1.6 to ≤ 2.0

Very good quality

> 2.0 to ≤ 3.0

Good quality

> 3.0 to ≤ 4.0

Fair quality

> 4.0

Poor quality