| Subject | English | Spanish |
| environ. | environmental quality objective | objetivo de calidad ambiental |
| environ. | quality objective | objetivo de calidad |
| environ. | quality objective Any goal or target established for a product, service or endeavor that aspires to attain a relatively high grade or level of excellence | objetivo de calidad |
| environ. | quality objective for aquatic environment | objetivo de calidad en el medio acuático |
| med. | quality objectives | objetivos de calidad |
| meteorol. | quality objectives | objetivos de la calidad |