Altistettaessa

Altistettaessa is a Finnish adverbial participle form of the verb altistaa, meaning to expose. It translates roughly to “when exposed (to)” or “upon exposure (to)” and is used to express a circumstance under which the action of the main clause occurs. It belongs to the family of adverbial or converbal participles in Finnish and signals time or condition rather than a completed action.

Formation: Altistettaessa is formed from the passive present stem of altistaa with the suffix -tta- and the present adverbial ending -essa, producing altistettaessa. The subject of the subordinate clause is typically implicit, making the construction concise and suitable for technical or formal writing.

Usage: It connects a subordinate clause describing exposure conditions to a main clause that states an effect, requirement, or instruction. It is commonly placed at the beginning of a sentence, followed by a comma, but can also appear in other positions within the sentence. It is not a finite verb and cannot stand alone.

Examples:

- Altistettaessa kudosta voimakkaalle valolle, soluvauriot voivat lisääntyä.

- Altistettaessa henkilö UV-säteilylle, iho voi palaa.

- Altistettaessa kemikaalille, oireet voivat ilmetä pian.

Notes: In many contexts, altistettaessa can be paraphrased with clauses starting with kun tai altistuu, but the participial form provides a more compact and formal style. It is common in safety data sheets, scientific texts, and regulatory documents to describe exposure-related conditions succinctly.