Zvinokonzera Kenza Zvinokonzerwa nemarasha Tar

3,4-Benzopyrene iripo mumarasha tara inozivikanwa sehombe kenza.

Chinhu ichi chinowanikwa munzvimbo dzakasiyana-siyana, kusanganisira utsi hunobva kumafekitari, utsi hwefodya, mota exhaust, uye munyama inopfungaira inogadzirwa panguva yekugocha.