Izilwandle zingamanzi amakhulu emhlabeni. Kungabonakala sengathi udoti, amanzi angcolile asekhaya, imvula ene-asidi akufanele isenze sibi kakhulu isimo samanzi olwandle, kepha akunjalo. Umsebenzi omkhulu we-anthropogenic uthinta isimo soLwandle Lomhlaba wonkana.
Udoti wepulasitiki
Kubantu, ipulasitiki ingenye yezinto ezinhle kakhulu ezisunguliwe, kepha ngokwemvelo le nto inomphumela omubi, ngoba inezinga eliphansi le-biodegradation. Kanye olwandle, imikhiqizo yepulasitiki iyanqwabelana futhi ivale amanzi, futhi inani lawo liyanda minyaka yonke. I-Phenomena enjengamabala odoti yakha ebusweni bamanzi, lapho kukhona ipulasitiki eningi kune-plankton. Ngaphezu kwalokho, abakhileyo olwandle bathatha upulasitiki bakudle, bakudle bese befa.
Ukuchitheka kukawoyela
Ukuchitheka kukawoyela kuyinkinga ebhubhisayo olwandle. Kungaba ukuvuza kukawoyela noma ukuphuka kwamathangi. Cishe i-10% yenani eliphelele lamafutha akhiqizwayo liyavuza minyaka yonke. Kudingeka inani elikhulu lezezimali ukuqeda inhlekelele. Ukuchitheka kukawoyela akubhekwana nakho ngokwanele. Ngenxa yalokho, indawo yamanzi imbozwe ifilimu kawoyela engavumeli ukuthi umoya-mpilo udlule. Zonke izimbali zasolwandle nezilwane ziyafa kule ndawo. Isibonelo, umphumela wokuchitheka kukawoyela ngo-2010 kwaba wushintsho nokwehla kweGulf Stream, futhi uma kunganyamalala, isimo sezulu seplanethi sizoshintsha kakhulu, ikakhulukazi eNyakatho Melika naseYurophu.
Ukubanjwa kwezinhlanzi
Ukudoba kuyinkinga ecindezelayo olwandle. Lokhu akwenzi lula ukudoba okuvamile ukuze kudliwe, kepha kudotshwa ngezinga lezimboni. Izikebhe zokudoba azibambi kuphela izinhlanzi, kodwa futhi namahlengethwa, oshaka, imikhomo. Lokhu kunomthelela ekwehleni okusebenzayo kwenani labantu abahlala olwandle. Ukuthengiswa kwemikhiqizo yezinhlanzi kuholela ekutheni abantu bazincishe ithuba lokuqhubeka nokudla izinhlanzi nezinhlanzi zasolwandle.
Izinsimbi namakhemikhali
- ama-chloride;
- i-sodium polyphosphate;
- ama-sulfate;
- ama-bleach;
- ama-nitrate;
- isoda;
- amagciwane eziphilayo;
- ukunambitheka;
- izinto ezinemisebe.
Lolu akulona uhlu oluphelele lwezingozi ezisongela izilwandle. Kumele kuqashelwe ukuthi wonke umuntu angakwazi ukunakekela izilwandle. Ukwenza lokhu, ungagcina amanzi ekhaya, ungalahli udoti emzimbeni wamanzi, futhi unciphise ukusetshenziswa kwamakhemikhali.
