Based on the above sand casting process analysis, there are many kinds of materials involved in the sand casting production process. The energy consumption is mainly the power consumption during the equipment working process, and the emission is mainly dust and other waste gases. In order to comprehensively evaluate the impact of the above consumption and emissions on resources and environmental load, the following indicators are selected to evaluate the sand casting process resources and environmental load. See the table for evaluation indicators.
| Index name | Indicator unit | Main influence substances |
| Non living resource consumption potential (ADP) | kg Sb eq | Steel, mineral, etc |
| Water consumption (WU) | kg | Fresh water and industrial water |
| Primary energy consumption (PED) | MJ | Oil, natural gas, coal, etc |
| Climate Change (GWP) | kg CO2 eq | CO2, CH4, N2O, etc |
| Acidification effect (AP) | kg SO2 eq | SO2, NH3, H2S, etc |
| Eutrophication of water body (EP) | kg PO4 eq | NOX, SO2, etc |
| Photochemical oxidation (POCP) | kg NMVOC eq | Formaldehyde, VOC, toluene, etc |
| Human ecotoxicity (HTP) | kg CTUh eq | CO, NOX, etc |
| Inhalable Inorganic (RI) | kg PM2.5 eq | PM2.5, PM10, etc |
Abiotic Depletion Potential (ADP) is used to assess the consumption potential of various natural mineral resources in the process, with antimony (Sb) as the reference material. Water resource consumption (WU) mainly assesses the potential value of water consumption available to the nature during the process. Primary energy demand (PED) mainly assesses the potential value of primary energy consumption of the process on nature, such as coal, oil, natural gas, etc. Climate Change (GWP) mainly assesses the potential impact of various greenhouse gases on global warming, with CO2 as the reference material. Acidification Potential (AP) is mainly used to evaluate the potential value of some acid gases for the formation of acid fog, acid rain and other hazards, with SO2 as the reference material. Eutrophication Potential (EP) mainly assesses the potential impact of substances containing N, P and other elements on water pollution. Photochemical Zone Creation Potential (POCP) is mainly used to assess the potential impact on the environment of pollutants such as ozone generated by chemical reaction of some gas pollutants under sunlight. Human Toxicity Potential (HTP) is mainly used to assess the potential toxic effects of some toxic pollutants on human body. Respirable inorganics (RI) is mainly used to assess the potential impact on human health of particles in the gas that can enter the lungs.
For sand casting, an evaluation index system consisting of three first class indexes and nine second class indexes is established according to the above analysis. The indicator system integrates the impact of the production process on resource consumption, environmental load and human health. Each dimension is subdivided into multiple secondary indicators to calculate the environmental impact of different elements in detail, covering minerals, water resources, energy, greenhouse gases, acid gases, the impact of the ozone layer, particulate matter, human toxicity and other aspects, It can comprehensively evaluate the impact of sand casting process on resources and environmental load.