BOGOTA, Colombia (AP) 鈥� More than a month has passed since , and the constant sound of heavy machinery still echoes through the hardest-hit neighborhoods of La Guaira on the northern coast.
Dust from collapsed buildings hangs in the humid air. Garbage has piled up. Families camp outside homes deemed too dangerous to enter. Water trucks weave through damaged streets.
鈥淭he smell of corpses is very strong” in some neighborhoods, said Carolina de Jes煤s, Venezuela project director for the humanitarian organization Project HOPE, who has spent nearly every day in the region since the quakes.
Public health and environmental experts told The Associated Press the coming weeks are critical to preventing secondary crises caused by contaminants from the rubble and rebuilding.
Government figures say the 7.2 and 7.5 magnitude quakes on June 24 , injured nearly 17,000 and left almost 18,000 homeless. Authorities have not said how many remain missing, though estimates put the figure in the tens of thousands. The World Bank estimates the quakes caused $19.6 billion in direct physical damage.
Survivors are now experiencing the environmental costs in a region where Venezuela鈥檚 health system was already weakened by years of economic crisis.
There is 鈥渉ope, but also enormous pressure over what will happen tomorrow,鈥� de Jes煤s said.
Residents face dust and other environmental hazards
Among those is Mary Cruz Andueza. The tower where her mother lived, part of a government housing program launched under late President Hugo Ch谩vez, collapsed.
鈥淚 don鈥檛 know if she鈥檚 alive, if she鈥檚 dead, if she鈥檚 in a hospital or still beneath the rubble,鈥� the 35-year-old Andueza said.
She said she became sick after spending days near the rubble.
鈥淭he dust made me seriously ill,鈥� she said. 鈥淲e鈥檝e had coughs, allergies, fever and headaches because we鈥檙e working so close to the every day.鈥�
Managing an estimated 1.2 million tons of debris caused by the quakes is a major environmental challenge. Much of the rubble could be contaminated with fuels, motor oil, paints, solvents, plastics and other hazardous materials released when buildings fell.
That has raised concerns that pollutants could spread if the debris is not properly sorted and disposed of. In La Guaira, steep mountains rise behind densely populated communities, leaving little space.
Authorities are separating contaminated debris from reusable material. Concrete and other recyclable waste will be used in reconstruction, while contaminated material 鈥� such as asbestos, chemicals, fuel residues and other hazardous waste 鈥� will need to be disposed at specialized facilities, according to Joaqu铆n Ben铆tez, director of Environmental Sustainability at Andr茅s Bello Catholic University in Caracas.
Ben铆tez said he had seen reports that some debris may have been dumped along the coast or into the sea during the initial emergency response as authorities raced to clear blocked roads. Local journalists said the practice was halted after the first few days.
If debris containing fuels or other hazardous materials reaches coastal waters, contaminants could affect water quality and marine ecosystems. Large volumes of sediment and construction waste could reshape shorelines and damage coastal habitats.
Diego D铆az Mart铆n, president of environmental organization Vitalis, said seasonal rains could trigger landslides on earthquake-weakened hillsides. He also warned that damage to sensitive ecosystems may remain undetected because many affected areas have yet to be assessed.
Mart铆n said the recovery effort should include work to reduce future environmental risks, and called on authorities to rebuild outside landslide-prone areas.
The Venezuelan government did not immediately respond to questions about its response to the environmental and public health impacts of the earthquake.
Drinking water and disease are concerns
Access to has become one of the biggest challenges. Even where tanker trucks are supplying communities, de Jes煤s said, that does not necessarily mean the water has been properly treated.
Unsafe water and inadequate sanitation are contributing to diarrheal diseases, urinary tract infections, skin infections and conditions that allow mosquito-borne diseases to spread, she said.
鈥淓arthquakes do not cause outbreaks by themselves. The risk comes from the post-disaster conditions,鈥� said Dr. Mauricio Cerpa, an epidemiologist with the Pan American Health Organization鈥檚 Emergency Operations Center.
Overcrowded shelters, disrupted water and sanitation systems, interrupted healthcare and reduced vaccination coverage create the conditions in which disease can spread, he said.
Cerpa said authorities have identified 18 and public health issues requiring immediate notification, including diarrheal diseases, respiratory infections, dengue, malaria and measles. Venezuela鈥檚 vaccination coverage had already fallen below recommended levels before the earthquakes, increasing concerns about crowded conditions.
Health officials said disease surveillance in temporary shelters has become an immediate priority. PAHO said health teams are supporting vaccination campaigns and improving water and sanitation conditions.
Cerpa said thousands of people with chronic illnesses such as diabetes and hypertension could face increasing risks if health services remain disrupted.
Some volunteers have developed respiratory illnesses
Thousands of volunteers and humanitarian workers have joined relief efforts amid of the official response.
De Jes煤s said some have developed respiratory illnesses after weeks of breathing silica and cement dust released as collapsed buildings are cleared. Others have suffered dehydration and diarrheal illnesses during long days in the heat.
鈥淥ne of the main challenges is how to recover all the essential care,鈥� Cerpa said, noting that hospitals must resume treatment for people with chronic illnesses while meeting growing demand for disease surveillance, mental health services and maternal care.
Alycia Clark, Direct Relief鈥檚 vice president and chief pharmacy officer, said the earthquakes compounded longstanding shortages of medicines, healthcare workers and medical infrastructure, leaving many patients at risk of missing routine care.
Public health and environmental experts said the next phase of recovery will focus on restoring safe water and sanitation, rebuilding essential health services and managing environmental hazards before they create new emergencies.
Clark said the immediate trauma response would give way to a much longer public health challenge.
鈥淭he needs are only going to increase from this point forward,鈥� she said.
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