Los Angeles: Pencemaran alam sekitar dikaitkan dengan kemungkinan
seseorang ibu bakal mempunyai anak autisme di mana bayi yang terhidu
asap kenderaan ketika dalam rahim atau baru lahir juga berisiko mendapat
autisme.
Kajian yang diterbitkan Archives of General Psychiatry menunjukkan bahawa pencemaran udara mempunyai kaitan dengan meningkatnya kadar autisme terhadap 500 bayi yang dilahirkan beberapa tahun ini.
Pencemaran lalu lintas
Kajian yang diterbitkan Archives of General Psychiatry menunjukkan bahawa pencemaran udara mempunyai kaitan dengan meningkatnya kadar autisme terhadap 500 bayi yang dilahirkan beberapa tahun ini.
Pencemaran lalu lintas
Keputusan itu menyokong kajian sebelum ini yang mengaitkan
kanak-kanak yang tinggal berhampiran jalan raya berisiko mengalami
autisme.
“Kami tidak menyatakan pencemaran lalu lintas menyebabkan autisme
tetapi mungkin menjadi faktor risiko,” kata Heather Volk, pembantu
profesor di Sekolah Perubatan Keck Universiti Southern California di Los
Angeles.
Mengukur kualiti udara
Autisme adalah gangguan spektrum DNA bermula daripada
ketidakmampuan berkomunikasi dan ketinggalan dari segi mental, yang
disifatkan sebagai gejala ringan sindrom Asperger.
Dalam kajian ini, Volk dan pasukannya mengukur kualiti udara di kawasan rumah kanak-kanak terbabit. Ia kemudian membandingkan dengan 245 kanak-kanak California yang tidak menghidap autisme.
Hasilnya 279 kanak-kanak yang autisme dua kali mungkin lebih banyak terdedah kepada pencemaran udara sewaktu dalam rahim dan tiga kali terkena pencemaran pada tahun pertama hayatnya.
Risiko dua kali ganda
Bagi kanak-kanak yang mengalami pencemaran bahan mengandungi campuran seperti asid, logam, tanah dan debu dengan jumlah yang banyak mempunyai risiko dua kali ganda lebih untuk mendapat autisme.
Volk turut melihat hubungan yang sama antara autisme dan nitrogen dioksida dalam kereta, trak dan asap kenderaan.
Kajian menunjukkan pencemaran tertentu berperanan dalam perkembangan otak tetapi itu tidak dapat membuktikan terkena pencemaran udara di kalangan kanak-kanak autisme. - Agensi
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