Concern about Mexico’s Popocatepetl Volcano Changes with the Wind

Incandescent materials, ash and smoke are spewed from the Popocatepetl volcano as seen from the San Nicolas de los Ranchos community, state of Puebla, Mexico, on May 23, 2023. (AFP)
Incandescent materials, ash and smoke are spewed from the Popocatepetl volcano as seen from the San Nicolas de los Ranchos community, state of Puebla, Mexico, on May 23, 2023. (AFP)
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Concern about Mexico’s Popocatepetl Volcano Changes with the Wind

Incandescent materials, ash and smoke are spewed from the Popocatepetl volcano as seen from the San Nicolas de los Ranchos community, state of Puebla, Mexico, on May 23, 2023. (AFP)
Incandescent materials, ash and smoke are spewed from the Popocatepetl volcano as seen from the San Nicolas de los Ranchos community, state of Puebla, Mexico, on May 23, 2023. (AFP)

Concern about the Popocatepetl volcano changes with the wind. While east of the mountain residents swept streets and didn’t remove their masks on Tuesday, here to the west, they casually watched the gas and ash plume emerging from its crater.

The 17,797-foot (5,425-meter) mountain just 45 miles (about 70 kilometers) southeast of Mexico City and known affectionately as “El Popo,” has been belching for days, dusting towns and crops in Puebla in a super-fine ash.

“When nothing is happening we worry,” said a cheerful Viridiana Alba, who has been selling flowers in Amecameca’s central plaza for 25 years. “El Popo,” as the volcano is affectionately known, rises directly across from her stand.

“We know that right now it’s releasing smoke, that’s freeing the energy that it holds,” she said. Ash still rests on the awning that shades her plants from when the wind blew her way last weekend. The town was shaken by the volcano’s tremors, but as long as the ash remains light she believes it will help her plants.

Winds have blown a large plume of ash east over Puebla and Veracruz states and eventually the Bay of Campeche and beyond.

Mexico’s National Center for Prevention of Disasters said in its report Tuesday that small domes of lava continued forming inside the crater that were then being destroyed by small and moderate explosions. It advised that people living in communities near the volcano would likely continue those explosions over the coming days and weeks.

Three days ago “my house shook almost all night, it was amazing,” said Arturo Benítez, a former local official. “The sound of the volcano was strong, it resembled a lit boiler and a lot of ash fell, but then suddenly on this side it settled down.”

That was Sunday, when authorities raised the alert level, while maintaining there is not current risk to the population.

No evacuations have been ordered, but authorities have been driving evacuation routes, preparing some shelters and doing simulation drills.

On Cortes Pass, a small highway that crosses a saddle between Popocatepetl and the inactive Iztaccihuatl volcano, a couple dozen civil defense vehicles and soldiers blocked the way Tuesday.

The road was closed to traffic and most of the cabins that draw tourists were empty.

Cástula Sánchez, 75, who sells food to tourists on the weekends, was confident Popocatepetl would settle down again and the tourists would return. She lives in nearby San Pedro Nexapa where three decades ago lava arrived close to her home before they could evacuate, but they were spared.

Now she runs a local information service from the back of her shop. Residents bring her short messages scribbled on a piece of paper that she then reads over a loudspeaker the whole community can hear. So far authorities have asked nothing of her, just to keep an eye out.

In Amecameca, police handed out pamphlets with tips on being prepared in case the volcano’s activity increased. The pamphlet recommended having important documents at hand, a full gas tank, masks and towels to dampen if residents had to leave in a hurry.

Most residents already know, especially those who remember an eruption in 1997 that “darkened the sky, thundered ... and a muddy rain fell,” Benítez said.

“The pyroclastic cloud came to Amecameca and it was chaos, everyone wanted to leave then and it was tremendous,” he said.

The only time Popocatepetl triggered a red alert on the government’s stoplight-style system since emerging from decades of dormancy in 1994 was in 2000. The volcano’s last major eruption was more than 1,000 years ago.

The activity this time has so far not been significant for locals, but the localized impacts could be real for residents on one side of the volcano while everything is normal on the other.

Benítez who worked years ago as a photographer with federal authorities monitoring the volcano said he thought coverage in recent days had been a bit exaggerated. “It’s not that bad, except if they know something we don’t know, because the activity has lessened.”

President Andrés Manuel López Obrador too downplayed the situation Tuesday.

“We are going to be watching and if there's anything we're going to inform,” he said. “But we feel like there isn't going to be a problem.”



Blood Tests Allow 30-year Estimates of Women's Cardio Risks, New Study Says

A woman jogs in a park in Saint-Sebastien-sur-Loire near Nantes, France January 19, 2024. REUTERS/Stephane Mahe/File Photo Purchase Licensing Rights
A woman jogs in a park in Saint-Sebastien-sur-Loire near Nantes, France January 19, 2024. REUTERS/Stephane Mahe/File Photo Purchase Licensing Rights
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Blood Tests Allow 30-year Estimates of Women's Cardio Risks, New Study Says

A woman jogs in a park in Saint-Sebastien-sur-Loire near Nantes, France January 19, 2024. REUTERS/Stephane Mahe/File Photo Purchase Licensing Rights
A woman jogs in a park in Saint-Sebastien-sur-Loire near Nantes, France January 19, 2024. REUTERS/Stephane Mahe/File Photo Purchase Licensing Rights

Women’s heart disease risks and their need to start taking preventive medications should be evaluated when they are in their 30s rather than well after menopause as is now the practice, said researchers who published a study on Saturday.

Presenting the findings at the European Society of Cardiology annual meeting in London, they said the study showed for the first time that simple blood tests make it possible to estimate a woman’s risk of cardiovascular disease over the next three decades.

"This is good for patients first and foremost, but it is also important information for (manufacturers of) cholesterol lowering drugs, anti-inflammatory drugs, and lipoprotein(a)lowering drugs - the implications for therapy are broad," said study leader Dr. Paul Ridker of Brigham and Women’s Hospital in Boston, Reuters reported.

Current guidelines “suggest to physicians that women should generally not be considered for preventive therapies until their 60s and 70s. These new data... clearly demonstrate that our guidelines need to change,” Ridker said. “We must move beyond discussions of 5 or 10 year risk."

The 27,939 participants in the long-term Women’s Health Initiative study had blood tests between 1992 and 1995 for low density lipoprotein cholesterol (LDL-C or “bad cholesterol”), which are already a part of routine care.

They also had tests for high-sensitivity C-reactive protein (hsCRP) - a marker of blood vessel inflammation - and lipoprotein(a), a genetically determined type of fat.

Compared to risks in women with the lowest levels of each marker, risks for major cardiovascular events like heart attacks or strokes over the next 30 years were 36% higher in women with the highest levels of LDL-C, 70% higher in women with the highest levels of hsCRP, and 33% higher in those with the highest levels of lipoprotein(a).

Women in whom all three markers were in the highest range were 2.6 times more likely to have a major cardiovascular event and 3.7 times more likely to have a stroke over the next three decades, according to a report of the study in The New England Journal of Medicine published to coincide with the presentation at the meeting.

“The three biomarkers are fully independent of each other and tell us about different biologic issues each individual woman faces,” Ridker said.

“The therapies we might use in response to an elevation in each biomarker are markedly different, and physicians can now specifically target the individual person’s biologic problem.”

While drugs that lower LDL-C and hsCRP are widely available - including statins and certain pills for high blood pressure and heart failure - drugs that reduce lipoprotein(a) levels are still in development by companies, including Novartis , Amgen , Eli Lilly and London-based Silence Therapeutics.

In some cases, lifestyle changes such as exercising and quitting smoking can be helpful.

Most of the women in the study were white Americans, but the findings would likely “have even greater impact among Black and Hispanic women for whom there is even a higher prevalence of undetected and untreated inflammation,” Ridker said.

“This is a global problem,” he added. “We need universal screening for hsCRP ... and for lipoprotein(a), just as we already have universal screening for cholesterol.”