Megmérjük a károsanyag-kibocsátást.

It has three main parts:

• meg- = a verbal prefix
• mér = the verb stem from mérni (to measure)
• -jük = we ending in the definite conjugation

So megmérjük means roughly we measure it / we will measure it.

Because Hungarian verbs can use two different conjugations:

• indefinite conjugation: when there is no definite object
• definite conjugation: when the verb has a definite direct object

Here the object is a károsanyag-kibocsátást = the emissions / the pollutant emission, which is definite because of a.

So Hungarian uses the definite form:

• mérünk = we measure / we are measuring something non-specific
• mérjük = we measure it / the specific thing

That is why the sentence has megmérjük.

In many verbs, meg- adds a sense of completion or result.

So:

• mérjük = we measure it / we are measuring it
• megmérjük = we measure it fully, take the measurement, get the result

In natural English, this often just becomes we measure or we will measure, but the Hungarian form suggests a completed action more strongly.

A is the definite article, meaning the.

Hungarian has two forms of the definite article:

• a before consonant sounds
• az before vowel sounds

Since károsanyag-kibocsátás starts with a consonant sound, it takes a.

So:

• a károsanyag-kibocsátás = the pollutant emission / the emission of harmful substances

This definiteness also helps explain why the verb is in the definite conjugation: megmérjük.

Because it is in the accusative case, which marks the direct object.

Base form:

• károsanyag-kibocsátás = pollutant emission / emission of harmful substances

Object form:

• károsanyag-kibocsátást = the pollutant emission as the thing being measured

So the sentence literally has measure + the-emission-ACC.

It is a compound noun.

• káros anyag = harmful substance
• károsanyag = harmful substance / pollutant
• kibocsátás = emission, release, discharge

So károsanyag-kibocsátás means something like:

• emission of harmful substances
• pollutant emission
• emissions

The exact English translation depends on context.

Because Hungarian often builds long compound words, and hyphens are used in certain long or multi-part compounds to make them easier to read.

So this is still one compound concept, but the hyphen helps show its structure:

• károsanyag
  • kibocsátás

English usually writes this as separate words, but Hungarian often prefers compound forms.

Grammatically, it is present tense.

However, in Hungarian, a present-tense verb with a prefix like meg- can often refer to a future action, depending on context.

So Megmérjük a károsanyag-kibocsátást can mean:

• We measure the emissions
• We’ll measure the emissions

Both are possible; context decides.

Yes, it can be separated.

In a neutral affirmative sentence, the verbal prefix usually stands directly before the verb, so it is written together:

• Megmérjük = we will measure it / we measure it

But if something like negation or strong focus appears, the prefix often moves away:

• Nem mérjük meg a károsanyag-kibocsátást. = We do not measure the emissions.
• A károsanyag-kibocsátást mérjük meg. = It is the emissions that we measure.

So meg- is not always stuck in front of the verb.

Hungarian word order is more flexible than English word order, and it often depends on topic and focus, not just grammar.

Starting with the verb here is natural if the sentence is presenting the action as new information, for example in a plan, procedure, or announcement:

• Megmérjük a károsanyag-kibocsátást. = We’ll measure the emissions.

If you move the object forward, the emphasis changes:

• A károsanyag-kibocsátást megmérjük.

That version puts more attention on the emissions. So the original sentence is a very normal, natural way to say it.