Pembuatan Profil Udara Hembusan Pernapasan Perokok dan Non Perokok Berbasis Sensor CCS-811 dan Volatile Organic Compound
Penulis
Sabila Alhadawiah , Arif Budianto , Rahadi Wirawan , Ni Ketut AnggrianiDOI:
10.29303/goescienceed.v6i1.506Diterbitkan:
2024-11-06Versi:
- 2024-11-06 (2)
- 2024-11-06 (1)
Terbitan:
Vol 6 No 1 (2025): In PressArticles
Abstrak
VOC merupakan sekelompok senyawa organik yang mudah menguap ke atmosfer dan mempunyai berbagai dampak terhadap kesehatan manusia dan lingkungan. VOC merupakan faktor penting dalam pembentukan ozon troposfer dan aerosol organik sekunder, yang menjadi komponen utama pembentukan polusi udara. VOC dapat terkandung di dalam udara sisa pernapasan manusia, dengan konsentrasi yang berbeda-beda dan sangat bergantung dengan kondisi metabolisme tubuh, kebiasaan, makanan yang dikonsumsi, dan lain sebagainya. Oleh sebab itu, penelitian ini bertujuan untuk mengidentifikasi konsentrasi TVOC dari udara hembusan nafas (exhaled breath) yang kemudian dijadikan sebagai profil udara yang dapat membedakan klasifikasi perokok atau non perokok. Penelitian ini menggunakan 50 sampel nafas yang dibagi ke dalam dua klasifikasi utama, yakni perokok dan non perokok. Udara bersih terfilter digunakan sebagai variabel kontrol. Sampel nafas diukur konsentrasi VOC menggunakan sebuah e-nose berbasis sensor CCS-811 yang sudah dikalibrasi dan diuji menggunakan komparator dan beberapa gas, seperti: gas karbon dioksida (CO2), hidrogen sulfida (H2S), etanol (C2H5OH), dan formaldehida (CH2O). Hasil penelitian menunjukkan bahwa sistem e-nose berbasis sensor CCS-811 dapat membaca gas VOC dengan rata-rata pembacaan yang dihasilkan sebesar 0-1156 ppb dengan tingkat kesalahan relatif <50%. Keseluruhan hasil pengujian ini menunjukkan bahwa sistem cukup sensitif terhadap gas CH2O dan C2H5OH, namun tidak sensitif terhadap gas CO2 dan H2S. Berdasarkan pada hasil penelitian, dapat disimpulkan bahwa sistem dapat secara sensitif dan selektif mendeteksi senyawa VOC pada jenis C2H5OH dan CH2O dengan nilai akurasi >50%. Hasil pembacaan sistem pada sampel nafas perokok dan non perokok dapat menghasilkan tiga zona konsentrasi TVOC yang selanjutnya menjadi profil has TVOC yang dihembuskan oleh kelompok sampel. Terdapat perbedaan yang cukup signifikan antara konsentrasi TVOC perokok dan non perokok. Sistem dapat membedakan antara perokok dan non perokok dengan akurasi pembacaan >90%.Referensi
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