Reziduurile

Reziduurile is a Romanian term that refers to material that remains after a process has occurred. The definite form reziduurile is used when speaking about specific leftovers already identified in a given context. The word is common in technical and regulatory language and can appear in multiple domains.

The term is used across several fields. In chemistry and materials science, it denotes solid material left after a reaction, purification, or sample processing—for example, residue from distillation or filtration. In environmental science and waste management, it describes contaminants or by-products that persist in soil, water, or air, including pesticide residues in food and industrial residues in waste streams. In pharmacology and medicine, it can refer to drugs or metabolites that remain in tissues or products after administration or manufacturing. In archaeology, art conservation, and historical research, residues may include trace remains of materials or pigments that survive in artifacts.

Residues are typically quantified to assess safety and environmental impact. Analytical methods such as chromatography and mass spectrometry are commonly used, with results reported as concentration in appropriate units (for example mg/kg in solids, mg/L in liquids). Regulatory limits and risk assessments guide exposure assessments and remediation decisions.

Origin: the word derives from Latin residu- via Romanian usage; in Romanian, reziduurile is a standard term in technical and regulatory language and is less common in everyday speech.