Przy pojemnikach jest czysto.

Because przy requires the locative case, and pojemnikach is the locative plural form of pojemniki.

• singular: pojemnik
• plural nominative: pojemniki
• plural locative: pojemnikach

So:

• pojemniki = the containers/bins
• przy pojemnikach = near the containers/bins

This is a very useful pattern to remember:

• przy domu = by the house
• przy sklepach = by the shops
• przy pojemnikach = by the containers/bins

Przy usually means by, next to, near, or at depending on context.

In this sentence, it gives the location where something is true. So przy pojemnikach means something like:

• by the containers
• near the bins
• around the containers

It does not usually mean directly inside or on them. It refers to the area next to them.

Because czysto is not an adjective here — it is an adverb/predicative form meaning clean in the sense of it is clean or the area is clean.

Compare:

• To miejsce jest czyste. = This place is clean.
  Here czyste is an adjective agreeing with miejsce.

• Tutaj jest czysto. = It is clean here.
  Here czysto is a general statement about the condition of a place.

So in Przy pojemnikach jest czysto, Polish is using the common pattern:

[place] + jest + adverb

For example:

• W domu jest cicho. = It is quiet at home.
• Na ulicy jest głośno. = It is loud in the street.
• W pokoju jest zimno. = It is cold in the room.

Polish often uses jest in impersonal location-and-condition sentences, where English might use it is.

So jest czysto literally works like:

• it is clean
• there is cleanliness
• the area is clean

There is no explicit subject because Polish does not need one here. This is very natural.

Similar examples:

• Jest zimno. = It is cold.
• W biurze jest cicho. = It is quiet in the office.
• Przed domem jest mokro. = It is wet in front of the house.

In full standard Polish, jest is the normal form here: Przy pojemnikach jest czysto.

You may sometimes hear shortened, headline-like, or very colloquial phrases without it, such as:

• Przy pojemnikach czysto.

But that sounds more like a note, report, or compressed style. For a learner, the safest and most natural full sentence is:

Przy pojemnikach jest czysto.

Not necessarily. Pojemnik is a general word meaning container, but in everyday real-life contexts it often refers to:

• rubbish bins
• recycling bins
• waste containers

So in this sentence, depending on context, a native speaker might naturally think of trash/recycling bins rather than abstract containers.

That is common in Polish: the exact English translation depends on the situation.

The basic order is:

Przy pojemnikach | jest | czysto
location | verb | condition

This is a very normal order in Polish.

You can change the word order for emphasis, for example:

• Jest czysto przy pojemnikach.
• Czysto jest przy pojemnikach.

But these feel more marked or context-driven. The original sentence is the most neutral and natural.

Usually it describes the current state or a general observation about the place.

So it can mean:

• right now, the area by the bins is clean
• in general, the area by the bins is kept clean

The sentence itself does not force one interpretation. Context decides.

If you wanted to stress a temporary state, Polish often still uses the same structure:

• Dzisiaj przy pojemnikach jest czysto. = Today it is clean by the bins.

Yes — very much so. This is a highly useful pattern:

[place] + jest + [adverb of condition]

Examples:

• W kuchni jest czysto. = The kitchen is clean.
• W pokoju jest duszno. = The room is stuffy.
• Na dworze jest zimno. = It is cold outside.
• W szkole jest głośno. = It is noisy at school.

This pattern is one of the most natural ways in Polish to describe what a place is like.