Grammar fix

public issue

community problem

A problem or topic that affects many people in society and is discussed or debated by the public.

collocationB2occasional

Hear it in context

Notice where the phrase sounds natural.

Climate change has become a major public issue around the world.society
In my opinion, pollution is the most important public issue in my country because it affects everyone's health and quality of life.IELTS speaking

Pattern: public issue (noun phrase); a/an/the public issue of [topic]

WrongIt's a publical issue.

RightIt's a public issue.

It's 'public' — there's no word 'publical'.

Patternpublic issue (noun phrase); a/an/the public issue of [topic]

Choose the version that sounds natural in speech.

Stiff It has become a matter of concern to society at large.

Natural It's become a real public issue.

'A matter of concern to society at large' is essay-speak; 'public issue' is plain.

Words that usually travel with it.

a public issue
a public issuepublic concerna matter of public interestraise the issue

Unlike a 'private issue', a 'public issue' involves many people and is often discussed in the news or by government.