# HiQLCD 1.4.0 The LCIA results have been revised in [1.4.1](/en/releases/hiqlcd/1.4.1). Models using only GWP100 can continue using this version; use 1.4.1 for other impact categories. See [known issues](#known-issues). ## Overview | Item | Content | | ------------------- | -------------------------------- | | Database | HiQLCD | | Database identifier | `hiqlcd` | | Version | `1.4.0` | | Release date | 2025-10 | | Data status | Published | | System model | CUT_OFF、CONSEQUENTIAL、EN_15804 | | Model changes | EN_15804 added in this version | | Data provider | Not recorded | ## What's new HiQLCD 1.4.0 contains 31,744 datasets (CUT_OFF) and adds the EN_15804 system model. It expands waste-treatment and lubricant data and revises existing inventories including coal. Subsequent LCIA result revisions are documented in 1.4.1. - [Chemicals](/en/sectors/chemicals): Adds 330 datasets, with representative reference products 切削油; 汽轮机油; 油膜轴承油; 润滑油; 液压油. - [Waste Treatment](/en/sectors/waste-treatment): Adds 155 datasets, with representative reference products 沼气; 填埋渗滤液; 焚烧渗滤液; 城市固体废弃物; 厨余垃圾废水. - [Coal and Products](/en/sectors/coal-and-products): Revises core inventory fields in 74 retained datasets, with representative reference products 原煤. - [Electric Power](/en/sectors/electric-power): Revises core inventory fields in 80 retained datasets, with representative reference products 电力，中高压; 燃煤发电厂; 基础建设，光伏发电，地面式; 基础建设，光伏发电，平屋顶式; 基础建设，风力发电，海上，<3 MW. Comparison: 1.3.0 to 1.4.0, CUT_OFF. Source: [Sources](#sources). ### Official release notes Translated from the official Chinese release notes. - Adds the EN15804 system model and corrects or updates selected existing datasets. - Adds flow-property-based water balance checks for dataset inputs and outputs, and adjusts water-footprint-related indicator results. - Adds waste recovery and treatment chain data and restructures lubricant-related data. - Updates key parameters, including coal mine recovery rates, mine water utilization and coalbed methane utilization, using recent surveys; updates raw coal production datasets. Source: [Official release notes at carbonx.hiqlcd.com](https://carbonx.hiqlcd.com/databases/hiqlcd/) ## Changes Catalog and inventory comparisons use 1.3.0 to 1.4.0. CUT_OFF changes from 32,609 to 31,744 datasets, a decrease of 865 (2.65%). The added EN_15804 model contains 31,718 datasets. ### Dataset counts | System model | Dataset count (Dataset ID) | | ------------- | -------------------------: | | CUT_OFF | 31,744 | | CONSEQUENTIAL | 30,348 | | EN_15804 | 31,718 | Browse by sector: [Sector index](/en/sectors) ### Dataset IDs (1.3.0 → 1.4.0) | System model | In both | Only in 1.4.0 | Only in 1.3.0 | | ------------- | -----------: | ----------------: | ----------------: | | CUT_OFF | 31,259 | 485 | 1,350 | | CONSEQUENTIAL | 30,016 | 332 | 1,016 | | Added system model | Status | Count reference | | ------------------ | ----------- | ----------------------------------------------- | | EN_15804 | model_added | [Model counts in this version](#dataset-counts) | Source: [ID Correspondence](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) Model totals: [1.3.0](/en/releases/hiqlcd/1.3.0#dataset-counts) / [1.4.0](#dataset-counts) ### Coverage changes CUT_OFF contains 1,447 activities and 949 reference products; geography codes rise from 393 to 411. Among shared datasets, 963 have revisions to core inventory fields and 3,997 have revisions to selected metadata fields. Inventory and metadata revisions are counted separately. #### Geographic distribution | Geographies (union of the top 10 per model) | CUT_OFF | CONSEQUENTIAL | EN_15804 | | ---------------------------------------------- | ------: | ------------: | -------: | | CN · China | 2,452 | 2,189 | 2,426 | | CN-SX · China,Shanxi | 910 | 895 | 910 | | CN-HE · China,Hebei | 889 | 874 | 889 | | CN-SC · China,Sichuan | 884 | 869 | 884 | | CN-LN · China,Liaoning | 881 | 869 | 881 | | CN-SD · China,Shandong | 881 | 867 | 881 | | CN-NM · China,Inner Mongolia Autonomous Region | 879 | 865 | 879 | | CN-HN · China,Hunan | 876 | 861 | 876 | | CN-JX · China,Jiangxi | 872 | 860 | 872 | | CN-GS · China,Gansu | 872 | 858 | 872 | | CN-XJ · China,Xinjiang Uygur Autonomous Region | 872 | 882 | 872 | Source: [Database Overview](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_Database_Overview_v1.4.0_r20261106T193638Z.xlsx) #### New dataset geographies (1.3.0 → 1.4.0) | System model | Status | Geography (top 10 per model) | Datasets | | ------------- | ----------------- | ---------------------------- | -------: | | CUT_OFF | Only in 1.4.0 | CN | 171 | | CUT_OFF | Only in 1.4.0 | CN-AH | 10 | | CUT_OFF | Only in 1.4.0 | CN-BJ | 10 | | CUT_OFF | Only in 1.4.0 | CN-CQ | 10 | | CUT_OFF | Only in 1.4.0 | CN-FJ | 10 | | CUT_OFF | Only in 1.4.0 | CN-GD | 10 | | CUT_OFF | Only in 1.4.0 | CN-GS | 10 | | CUT_OFF | Only in 1.4.0 | CN-GX | 10 | | CUT_OFF | Only in 1.4.0 | CN-GZ | 10 | | CUT_OFF | Only in 1.4.0 | CN-HA | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN | 21 | | CONSEQUENTIAL | Only in 1.4.0 | CN-AH | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-BJ | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-CQ | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-FJ | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-GD | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-GS | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-GX | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-GZ | 10 | | CONSEQUENTIAL | Only in 1.4.0 | CN-HA | 10 | | EN_15804 | Added model IDs | CN | 2,426 | | EN_15804 | Added model IDs | CN-SX | 910 | | EN_15804 | Added model IDs | CN-HE | 889 | | EN_15804 | Added model IDs | CN-SC | 884 | | EN_15804 | Added model IDs | CN-LN | 881 | | EN_15804 | Added model IDs | CN-SD | 881 | | EN_15804 | Added model IDs | CN-NM | 879 | | EN_15804 | Added model IDs | CN-HN | 876 | | EN_15804 | Added model IDs | CN-GS | 872 | | EN_15804 | Added model IDs | CN-JX | 872 | #### New reference products (1.3.0 → 1.4.0) | Sector | System model | Union of new product UUIDs across the database | References | | ------------------- | ----------------------- | ---------------------------------------------: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Waste Treatment | CUT_OFF / CONSEQUENTIAL | 48 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/waste-treatment#new-reference-products) | | Basic Energy | CUT_OFF | 2 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/basic-energy#new-reference-products) | | Thermal Power/Heat | CUT_OFF | 2 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/thermal-power-heat#new-reference-products) | | Chemical Industry | CUT_OFF / CONSEQUENTIAL | 2 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/chemical-industry#new-reference-products) | | Chemicals | CUT_OFF / CONSEQUENTIAL | 1 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/chemicals#new-reference-products) | | Paints and Coatings | CUT_OFF / CONSEQUENTIAL | 1 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/paints-and-coatings#new-reference-products) | | Waste Disposal | CUT_OFF | 1 | [Source product fields](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261106T193638Z.xlsx) / [Product changes within this sector](/en/sectors/waste-disposal#new-reference-products) | Basis: the union of database-wide new Product UUIDs across comparable models, grouped by sector. Sector pages retain the within-sector set differences and names. ### Data quality and documentation | CUT_OFF documentation coverage / datasets | 1.3.0 | 1.4.0 | | --- | --- | --- | | Datasets with data quality scores | 0 / 32,609 (0.00%) | 65 / 31,744 (0.20%) | | Process documents with an overall quality score | 5,082 / 32,609 (15.58%) | 8,359 / 31,744 (26.33%) | | Datasets with technology descriptions | 17,645 / 32,609 (54.11%) | 16,930 / 31,744 (53.33%) | ### Impact assessment The published method catalog contains 1,942 category-indicator entries. The catalog with characterization factors contains 44 methods and 770 category indicators, with 228,044 characterization-factor records. Against 1.3.0, characterization-factor records increase by 8 net, with record differences concentrated in the regrouping of EN15804 categories and indicators. See [System models](/en/data-reference/system-models) for the added model’s application scope. #### Impact assessment methods | Impact assessment method (version catalog) | Impact categories (distinct UUIDs) | Category indicator entries (complete Method IDs) | Method UUID status | | ------------------------------------------ | ---------------------------------: | -----------------------------------------------: | ------------------ | | CML v4.8 2016 | 11 | 11 | Retained | | CML v4.8 2016 no LT | 11 | 11 | Retained | | Crustal Scarcity Indicator 2020 | 1 | 1 | Retained | | Cumulative Energy Demand (CED) | 12 | 12 | Retained | | Cumulative Exergy Demand (CExD) | 14 | 14 | Retained | | EDIP 2003 | 10 | 47 | Retained | | EDIP 2003 no LT | 10 | 47 | Retained | | EF v3.0 | 28 | 28 | Retained | | EF v3.0 EN15804 | 20 | 20 | Retained | | EF v3.0 no LT | 28 | 28 | Retained | | EF v3.1 | 25 | 25 | Retained | | EF v3.1 EN15804 | 20 | 20 | Retained | | EF v3.1 no LT | 25 | 25 | Retained | | EN15804 | 23 | 36 | Retained | | EPS 2020d | 7 | 7 | Retained | | EPS 2020d no LT | 7 | 7 | Retained | | Ecological Footprint | 4 | 4 | Retained | | Ecological Scarcity 2021 | 12 | 20 | Retained | | Ecological Scarcity 2021 no LT | 12 | 20 | Retained | | Ecosystem Damage Potential | 3 | 3 | Retained | | IMPACT 2002+ (Endpoint) | 4 | 16 | Retained | | IMPACT 2002+ (Midpoint) | 1 | 2 | Retained | | IPCC 2013 | 1 | 4 | Retained | | IPCC 2013 no LT | 1 | 4 | Retained | | IPCC 2021 | 8 | 32 | Retained | | IPCC 2021 no LT | 8 | 32 | Retained | | ReCiPe 2016 v1.03, endpoint (E) | 7 | 26 | Retained | | ReCiPe 2016 v1.03, endpoint (E) no LT | 6 | 25 | Retained | | ReCiPe 2016 v1.03, endpoint (H) | 6 | 25 | Retained | | ReCiPe 2016 v1.03, endpoint (H) no LT | 6 | 25 | Retained | | ReCiPe 2016 v1.03, endpoint (I) | 6 | 24 | Retained | | ReCiPe 2016 v1.03, endpoint (I) no LT | 6 | 24 | Retained | | ReCiPe 2016 v1.03, midpoint (E) | 18 | 18 | Retained | | ReCiPe 2016 v1.03, midpoint (E) no LT | 18 | 18 | Retained | | ReCiPe 2016 v1.03, midpoint (H) | 18 | 18 | Retained | | ReCiPe 2016 v1.03, midpoint (H) no LT | 18 | 18 | Retained | | ReCiPe 2016 v1.03, midpoint (I) | 18 | 18 | Retained | | ReCiPe 2016 v1.03, midpoint (I) no LT | 18 | 18 | Retained | | TRACI v2.1 | 9 | 9 | Retained | | TRACI v2.1 no LT | 9 | 9 | Retained | | USEtox | 2 | 4 | Retained | | USEtox no LT | 2 | 4 | Retained | | selected LCI results | 4 | 8 | Retained | | selected LCI results, additional | 5 | 20 | Retained | Source: [Database Overview：LCIA Methods / Impact Categories](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_Database_Overview_v1.4.0_r20261106T193638Z.xlsx) #### Method catalog changes (1.3.0 → 1.4.0) | Catalog object | 1.3.0 | 1.4.0 | Added catalog IDs | Removed catalog IDs | Retained catalog IDs | | ----------------------------------------------------- | ----: | ----: | ----------------: | ------------------: | -------------------: | | Impact assessment method UUID | 106 | 106 | 0 | 0 | 106 | | Category indicator catalog Method ID (original value) | 1,920 | 1,942 | 22 | 0 | 1,920 | ### Result changes The IPCC 2021 / climate change / GWP100 comparison covers 31,259 shared CUT_OFF datasets from 1.3.0 to 1.4.1.The revised 1.4.1 results are used for the newer endpoint. Relative difference is abs(new−old) / max(abs(new), abs(old)); selection thresholds use the maximum absolute indicator value over all shared datasets in both versions. | Row-peak multiplier | Selected datasets | Relative difference P50 | P90 | P99 | Selected datasets with relative difference >10% | | --- | --- | --- | --- | --- | --- | | 1e-12 | 30,204 | 0.35697% | 3.98684% | 50.07684% | 1,520 | | 1e-9 | 23,408 | 0.31505% | 1.36630% | 50.11810% | 810 | Use the ID correspondence to locate datasets during migration, and reassess the model with the selected version. ## Files Attachment revision: 20261107T020200Z | Files | Scope | Format | bytes | System model | SHA-256 | | --- | --- | --- | ---: | --- | --- | | [hiqlcd_Database_Overview_v1.4.0_r20261107T020200Z.xlsx](/files/hiqlcd/1.4.0/revisions/20261107T020200Z/hiqlcd_Database_Overview_v1.4.0_r20261107T020200Z.xlsx) | Catalogs of datasets, reference products, geographies, flows and impact assessment methods. | XLSX | 7267844 | CUT_OFF, CONSEQUENTIAL, EN_15804 | c3dd6ba0e12cc31862de2f1a3f7958dab88293ccc429bc8ad1489ad770a219df | | [hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261107T020200Z.xlsx](/files/hiqlcd/1.4.0/revisions/20261107T020200Z/hiqlcd_ID_Correspondence_v1.3.0-v1.4.0_r20261107T020200Z.xlsx) | Dataset ID correspondence between adjacent versions. (1.3.0 → 1.4.0) | XLSX | 10564558 | CUT_OFF, CONSEQUENTIAL, EN_15804 | 902d82c6ae2fc03bc2a083c012063820c39fc5bb72a47a689ae75e169fe3650c | | [hiqlcd_Change_Annex_Metadata_v1.3.0-v1.4.0_r20261107T020200Z.xlsx](/files/hiqlcd/1.4.0/revisions/20261107T020200Z/hiqlcd_Change_Annex_Metadata_v1.3.0-v1.4.0_r20261107T020200Z.xlsx) | Metadata changes in dataset, flow and LCIA catalogs. (1.3.0 → 1.4.0) | XLSX | 6110084 | CUT_OFF, CONSEQUENTIAL, EN_15804 | 518f2d4e89d74b1f8041fe81c9ecb8d29d4abb3c39c377f036e894199db9c4ad | [File definitions](/en/resources/file-definitions) ## Known issues and limitations Sector tags overlap. Inventory revisions are counted by changes in core inventory fields; metadata revisions are counted separately. | Issue | Corrected version | Action | | ----------------------------- | ----------------------------------- | ----------------- | | Selected LCIA results revised | [1.4.1](/en/releases/hiqlcd/1.4.1) | Retain GWP100; use 1.4.1 for other categories | Models using only GWP100 can continue using this version; use [1.4.1](/en/releases/hiqlcd/1.4.1#result-changes) for other impact categories. Source: HiQLCD data team statement. ### Documentation completeness (r1 field coverage) Score coverage counts populated fields. Pending documentation: formal replacement mappings for consolidated datasets, water-footprint validation rules and affected scope, and EN 15804 indicator-implementation and review notes. Model applicability is established from the selected dataset documentation and applicable standard. | Worksheet | Field | Rows with missing values or components | Total rows | | ---------------------- | ---------------------------------------- | -------------------------------------: | ---------: | | Cut-Off AO | Technology Level | 31,744 | 31,744 | | Cut-Off AO | Product Classification | 31,744 | 31,744 | | Cut-Off AO | Product Information | 31,744 | 31,744 | | Cut-Off AO | CAS Number | 31,335 | 31,744 | | Cut-Off AO | Cut-Off Classification | 31,744 | 31,744 | | Consequential AO | Technology Level | 30,348 | 30,348 | | Consequential AO | HIQ Industry Classification | 1 | 30,348 | | Consequential AO | Product Classification | 30,348 | 30,348 | | Consequential AO | Product Information | 30,348 | 30,348 | | Consequential AO | CAS Number | 30,047 | 30,348 | | Consequential AO | Cut-Off Classification | 30,348 | 30,348 | | EN15804 AO | Technology Level | 31,718 | 31,718 | | EN15804 AO | Product Classification | 31,718 | 31,718 | | EN15804 AO | Product Information | 31,718 | 31,718 | | EN15804 AO | CAS Number | 31,309 | 31,718 | | EN15804 AO | Cut-Off Classification | 31,718 | 31,718 | | Geographies | Latitude | 35 | 413 | | Geographies | Longitude | 35 | 413 | | Geographies | Geography Classification | 413 | 413 | | Geographies | Contained and Overlapping Geographies | 413 | 413 | | Geographies | Parent Geography | 1 | 413 | | LCIA Methods | Method Name | 63 | 107 | | LCIA Methods | Method Version | 107 | 107 | | LCIA Methods | Status | 107 | 107 | | LCIA Methods | HiQLCD Documentation | 107 | 107 | | LCIA Methods | Further Documentation | 107 | 107 | | LCIA Methods | Links to Characterization Factor Sources | 107 | 107 | | LCIA Methods | Method UUID | 1 | 107 | | Impact Categories | Resources - Emissions - Total | 1,942 | 1,942 | | Impact Categories | Main impact/damage category | 1,942 | 1,942 | | Impact Categories | Inventory - Midpoint - Endpoint - AoP | 1,942 | 1,942 | | Impact Categories | Area of Protection (AoP) | 1,942 | 1,942 | | Impact Categories | Used in EN15804 | 1,942 | 1,942 | | Impact Categories | Method | 1,155 | 1,942 | | Impact Categories | Category | 1,105 | 1,942 | | Impact Categories | Indicator | 1,140 | 1,942 | | Impact Categories | Unit | 1,172 | 1,942 | | Impact Categories | Category name in method | 1,942 | 1,942 | | Impact Categories | Indicator name in method | 1,942 | 1,942 | | Impact Categories | Unit in method | 1,942 | 1,942 | | Intermediate Exchanges | Unit Name | 61 | 953 | | Intermediate Exchanges | CAS Number | 936 | 953 | | Intermediate Exchanges | Comment | 953 | 953 | | Intermediate Exchanges | By-product Classification | 953 | 953 | | Intermediate Exchanges | CPC Classification | 953 | 953 | | Intermediate Exchanges | Product Information | 953 | 953 | | Intermediate Exchanges | Synonym | 953 | 953 | | Elementary Exchanges | Unit Name | 1 | 4,794 | | Elementary Exchanges | CAS Number | 597 | 4,794 | | Elementary Exchanges | Comment | 4,794 | 4,794 | | Elementary Exchanges | Synonym | 4,794 | 4,794 | | Elementary Exchanges | Formula | 573 | 4,794 | | Impact Categories | Method ID has missing components | 163 | 1,942 | Source: [Database Overview：Field Availability](/files/hiqlcd/1.4.0/revisions/20261106T193638Z/hiqlcd_Database_Overview_v1.4.0_r20261106T193638Z.xlsx) ## Citation hiqlcd, version 1.4.0. Specify the system model, dataset and source when citing results. See [citation format](/en/resources/citation). ## Sources Sources and exact file revisions are recorded below each table or statement. File definitions are available in [File definitions](/en/resources/file-definitions). [Database Overview](/files/hiqlcd/1.4.0/revisions/20261107T020200Z/hiqlcd_Database_Overview_v1.4.0_r20261107T020200Z.xlsx) supplies the current catalog. Documentation-coverage and inventory-revision figures use the version’s process documentation; result comparisons use existing results aligned by dataset and category indicator.