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Kotomora

粒りゅう子し状じょう物ぶっ質しつ

りゅ
う
し
じょ
う
ぶ
っ
し
つ

Meanings

1

noun

particulate matter; PM

Technical term used in environmental science and public health to refer to tiny solid or liquid particles suspended in the air, such as PM2.5 or PM10.