În ceea ce privește parametrii apei, măsurăm fosfatul.

It means as for, regarding, or with respect to.

In this sentence, În ceea ce privește parametrii apei introduces the topic: regarding the water parameters.

This is a very common Romanian expression in formal or neutral language. It is a set phrase, so learners usually remember it as one chunk.

Examples:

• În ceea ce privește prețul, este acceptabil. = As for the price, it is acceptable.
• În ceea ce privește calitatea, produsul este foarte bun. = Regarding the quality, the product is very good.

Privește is the 3rd person singular form of a privi (to concern / to regard / to look at, depending on context).

In the expression ceea ce privește, the literal idea is something like that which concerns or that which regards. So even though English speakers may think of the whole phrase as meaning regarding, Romanian builds it with a verb form.

So:

• ceea ce = that which / what
• privește = concerns / regards

Together:

• ceea ce privește = what concerns / as regards

Ceea ce usually means what or that which.

In this sentence, it is part of the fixed expression în ceea ce privește. You do not need to translate it word-for-word every time, but understanding the pieces can help:

• ceea = that thing
• ce = which / what

So ceea ce privește is literally something like that which concerns.

Because this phrase is so common, it is best learned as a whole unit:

• în ceea ce privește = regarding / as for

Parametrii is the definite plural form of parametri (parameters).

The noun goes like this:

• un parametru = a parameter
• doi parametri = two parameters
• parametrii = the parameters

The double i happens because:

1. one i belongs to the plural form (parametri),
2. the second i marks the definite article in the plural.

So:

• parametri = parameters
• parametrii = the parameters

This double-i pattern is common in Romanian masculine nouns.

Because apei is the genitive/dative singular form of apă (water), and here it means of the water.

So:

• apa = the water (subject or direct object form)
• apei = of the water

In parametrii apei, the meaning is:

• the parameters of the water
• more naturally in English: the water parameters

This is a normal Romanian possessive structure:

• culoarea cerului = the color of the sky
• temperatura apei = the temperature of the water
• parametrii apei = the parameters of the water

Fosfatul means the phosphate. Romanian often uses the definite article where English might use a bare noun.

So:

• fosfat = phosphate
• fosfatul = the phosphate

In technical or scientific contexts, Romanian frequently says things like:

• măsurăm pH-ul
• verificăm nitratul
• analizăm fosfatul

Even if English would simply say we measure phosphate, Romanian may prefer the definite form.

Măsurăm means we measure. It comes from the verb a măsura (to measure).

The ă is a Romanian vowel sound, different from ordinary a. It is very common in Romanian and must be written correctly because it is a real letter, not just an accent mark.

Verb forms:

• eu măsor = I measure
• tu măsori = you measure
• el/ea măsoară = he/she measures
• noi măsurăm = we measure

So in this sentence:

• măsurăm fosfatul = we measure the phosphate

A rough English-friendly pronunciation is:

In choh-YAH cheh pree-VEH-shteh

A few notes:

• În has the Romanian î, a sound English does not really have. It is pronounced farther back in the mouth than English i.
• ce sounds like cheh
• privește has ș, which sounds like English sh

So:

• ceea ce ≈ cheh-yah cheh
• privește ≈ pree-veh-shteh

This is only an approximation, but it helps as a starting point.

The sentence as given is natural and clear:

• În ceea ce privește parametrii apei, măsurăm fosfatul.

Romanian word order is fairly flexible, but not every version sounds equally natural.

Possible alternatives:

• Măsurăm fosfatul în ceea ce privește parametrii apei.
• Fosfatul îl măsurăm în ceea ce privește parametrii apei.

These are possible in certain contexts, but the original sentence is the most straightforward if you want to say regarding water parameters, we measure phosphate.

Putting În ceea ce privește... at the beginning is very common because it sets the topic first.

Yes. Apei is in the genitive, and it depends on parametrii.

So:

• parametrii = the parameters
• apei = of the water

Together:

• parametrii apei = the parameters of the water

English often prefers noun + noun combinations such as water parameters, but Romanian usually uses this noun + genitive structure.

Yes, you could. Cu privire la also means regarding / concerning.

So this would be possible:

• Cu privire la parametrii apei, măsurăm fosfatul.

However, there is a slight style difference:

• în ceea ce privește is very common and often feels a bit more flowing or idiomatic in many contexts.
• cu privire la can sound a bit more formal or administrative.

Both are correct.

It is neutral to somewhat formal, especially because of În ceea ce privește.

The vocabulary also sounds technical or scientific:

• parametrii
• fosfatul
• măsurăm

So the whole sentence fits well in a lab, report, technical discussion, or classroom setting.

In casual conversation, someone might choose a simpler structure, depending on context.

Romanian can use prepositions for this idea, but it also very often uses set expressions instead of a simple one-word equivalent of English about.

For example:

• despre = about
• privind = regarding
• cu privire la = with regard to
• în ceea ce privește = as regards / regarding

In this sentence, în ceea ce privește is chosen because it sounds natural in a more structured or technical statement.

So Romanian does not always match English word-for-word. Instead of just about the water parameters, Romanian may prefer a phrase like în ceea ce privește parametrii apei.

Yes, the comma is appropriate here.

În ceea ce privește parametrii apei is an introductory topic-setting phrase. Romanian normally separates this kind of fronted expression with a comma from the main clause:

• În ceea ce privește parametrii apei, măsurăm fosfatul.

This is similar to English punctuation in sentences like:

• As for water parameters, we measure phosphate.

So the comma helps mark the transition from the topic phrase to the main statement.