Odwala omwe ali ndi mphumu ya udzu omwe amakhala ku Madrid ndipo amaipitsidwa kwambiri ndi mizinda amakhala ndi vuto lochepa kwambiri lachipatala komanso khungu komanso chitetezo chamthupi kuposa odwala omwe amakhala ku Ciudad Real ndipo amakumana ndi vuto lochepa la mizinda. Uku ndi kutha kwa kafukufuku wopangidwa ndi 'Allergy gulu' la Ciudad Real Hospital, lophatikizidwa mu Allergic Diseases Network ya Carlos III Health Institute.
Ntchitoyi ndi gawo la kafukufuku wa gulu la 'Asthma, pollen and pollution', omwe maphunziro awo amabwerera zaka zambiri ndikuwunika odwala omwe ali ndi mphumu ku Puertollano ndi Ciudad Real, malinga ndi Sescam. Ntchitoyi idayamba kale kuchokera kukusintha koyipa kwa mphumu komanso kuwonongeka kwakukulu kwachipatala kwa odwala ochokera ku Puertollano molingana ndi omwe akuchokera ku Ciudad Real chifukwa cha kuwonongeka kwa mafakitale.
Kafukufuku waposachedwa "wakhala ndi cholinga chowunika zotsatira za kuwonongeka kwa mizinda mu gulu ili la odwala," adatero Dr. Feo Brito, wamkulu wa ntchito ya Ciudad Real Allergology. Kafukufuku waposachedwapa "wasonyeza kuti kuwonongeka kwa mizinda kwakhala kogwirizana ndi kuwonjezeka kwa m'ndende zosagwirizana ndi anthu komanso kusintha kosauka kwa odwala asthmatic m'mizinda ikuluikulu." Chifukwa chake n’choŵirikiza: kumbali ina, “zinthu zoipitsa zimayambitsa kutupa kwa m’mphuno ndi kumawonjezera kuyankha kwa mphumu kwa odwala ziwengo; ndipo, kumbali ina, zomera zomwe zimakhudzidwa ndi zonyansa zimapanga mungu woopsa kwambiri, wowonjezera allergenic, wochititsa chidwi kwambiri mu asthmatics ".
Mu kafukufukuyu, odwala 106 ochokera ku Madrid ndi Ciudad Real adatsatiridwa zaka zaposachedwa. Momwemonso, tidasanthula kuchuluka kwa mitengo ndi zoipitsa m'maofesi a akazembe. Zotsatira za symptomatology yachipatala ya odwala aku Madrid zidapangitsa kuti 30 peresenti ikhale yokwera kuposa ya Ciudad Real, pomwe kuipitsidwa komwe kumakhudzana ndi kuchuluka kwa magalimoto (nitrogen dioxide) kuchulukitsa katatu ku Madrid.
