ABSTRACT The clay roof tile industry in Klaten Regency still uses a traditional firing system that has the potential to produce air pollutants, one of which is nitrogen dioxide (NO₂), which is known to cause respiratory health problems. This study aims to assess the NO₂ concentration from roof tile firing activities and analyze its health risks to the surrounding community using the Environmental Health Risk Analysis (ARKL) method. The study design used was quantitative observational analytic with a cross-sectional design in Banjardawa and Gadungmlati Hamlets. NO₂concentration measurements were carried out using an Impinger on five active combustion stoves, while respondent data were collected through questionnaires. The results showed that NO₂ concentrations ranged from 8.54–11.2 µg/m³ with an average of 9.95 µg/m³, still below the ambient air quality standard set by Government Regulation of the Republic of Indonesia No. 22 of 2021 of 200 µg/m³. The calculated intake value was 0.000114 mg/kg/day and the Risk Quotient (RQ) was 0.0057, indicating that NO₂ exposure does not pose a non-carcinogenic health risk. Risk estimates for the next 20 years also show that the RQ remains below one. Therefore, NO₂ exposure from roof tile burning activities at the study site does not pose a risk to public health, although regular air quality monitoring is still necessary as a preventative measure. Keywords: Nitrogen Dioxide, Air Quality, Roof Tile Industry, Environmental Health Risk Analysis, Risk Quotient. ABSTRAK Industri genteng tanah liat di Kabupaten Klaten masih menggunakan sistem pembakaran tradisional yang berpotensi menghasilkan polutan udara, salah satunya nitrogen dioksida (NO₂), yang diketahui dapat menimbulkan gangguan kesehatan pernapasan. Penelitian ini bertujuan untuk menilai konsentrasi NO₂ dari aktivitas pembakaran genteng serta menganalisis risiko kesehatannya terhadap masyarakat sekitar menggunakan metode Analisis Risiko Kesehatan Lingkungan (ARKL). Desain penelitian yang digunakan adalah kuantitatif observasional analitik dengan rancangan cross-sectional di Dusun Banjardawa dan Dusun Gadungmlati. Pengukuran konsentrasi NO₂ dilakukan menggunakan Impinger pada lima tobong pembakaran aktif, sedangkan data responden dikumpulkan melalui kuesioner. Hasil penelitian menunjukkan konsentrasi NO₂ berkisar antara 8,54–11,2 µg/m³ dengan rata-rata 9,95 µg/m³, masih di bawah baku mutu udara ambien PP RI No. 22 Tahun 2021 sebesar 200 µg/m³. Nilai intake yang dihitung sebesar 0,000114 mg/kg/hari dan Risk Quotient (RQ) sebesar 0,0057, yang berarti paparan NO₂ tidak menimbulkan risiko kesehatan non-karsinogenik. Estimasi risiko hingga 20 tahun ke depan juga menunjukkan nilai RQ tetap berada di bawah satu. Dengan demikian, paparan NO₂ dari aktivitas pembakaran genteng di lokasi penelitian belum berisiko terhadap kesehatan masyarakat, meskipun pemantauan kualitas udara secara berkala tetap diperlukan sebagai langkah pencegahan. Kata Kunci: Nitrogen Dioksida, Kualitas Udara, Industri Genteng, Analisis Risiko Kesehatan Lingkungan, Risk Quotient.
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